Add test attempting to reproduce "Affixes" field error with affix morph types

[Copilot]

The CanSyncRandomEntries test fails intermittently with LcmInvalidFieldException: Fieldname 'Affixes' does not exist when entries with certain morph types have complex form components.

Root Cause

LibLCM bug: LexEntry.get_VisibleComplexFormBackRefs() attempts to access an "Affixes" field that doesn't exist for entries using IMoAffixAllomorph internal structures (affix morph types: Prefix, Suffix, Infix, Circumfix, Simulfix, Suprafix, *Interfix variants).

Note: The original error showed MorphType = Enclitic, but Enclitic is actually treated as a stem type in the codebase, not an affix type. This suggests the error conditions are more complex than initially understood.

Stack trace:
at SIL.LCModel.DomainImpl.LexEntry.get_VisibleComplexFormBackRefs()
at SIL.LCModel.DomainImpl.LexEntryRef.UpdateComplexFormEntryBackRefs()
at SIL.LCModel.DomainImpl.LexEntry.AddComponent()

Changes

Added a single targeted test method to isolate triggering conditions:

• CanCreateAffixEntryWithComplexFormComponents: Tests affix MorphType (Prefix) entry with both components and complex forms

Test currently passes, indicating the error requires additional conditions not yet identified, likely:

• Specific ordering of operations during sync
• Pre-existing complex form relationships or state
• Combination of morph types between related entries (component vs. complex form)
• Round-trip transformation details

Next Steps

This is a LibLCM library bug requiring either:

1. Upstream fix in SIL.LCModel
2. Workaround in FwDataMiniLcmApi (detect problematic combinations, reorder operations, or catch/handle gracefully)

The test provides a foundation for reproduction once the specific triggering conditions are identified.

Original prompt

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This section details on the original issue you should resolve

<issue_title>CanSyncRandomEntries failure: Fieldname 'Affixes' does not exist</issue_title>
<issue_description>Note that this occurred when testing the FwData API and using the FwData API for round-tripping.
I assume it has something to do with Morph Types.

Error: MiniLcm.Exceptions.CreateObjectException : Failed to create entry Entry { Id = f1d74029-2323-580f-00e2-96d1867f097b, DeletedAt = , LexemeForm = fr: cross-media, en: Lane, CitationForm = fr: transmit, es: input, en: forecast, LiteralMeaning = fr: MiniLcm.Models.RichString, es: MiniLcm.Models.RichString, MorphType = Enclitic, Senses = System.Collections.Generic.List1[MiniLcm.Models.Sense], Note = fr: MiniLcm.Models.RichString, en: MiniLcm.Models.RichString, Components = System.Collections.Generic.List1[MiniLcm.Models.ComplexFormComponent], ComplexForms = System.Collections.Generic.List1[MiniLcm.Models.ComplexFormComponent], ComplexFormTypes = System.Collections.Generic.List1[MiniLcm.Models.ComplexFormType], PublishIn = System.Collections.Generic.List`1[MiniLcm.Models.Publication] }
---- SIL.LCModel.LcmInvalidFieldException : Fieldname 'Affixes' does not exist. Consider using a decorator or review the fieldname for typos.

Failed FwLiteProjectSync.Tests.CrdtEntrySyncTests.CanSyncRandomEntries(roundTripApiType: FwData) [2 s]
Error Message:
MiniLcm.Exceptions.CreateObjectException : Failed to create entry Entry { Id = f1d74029-2323-580f-00e2-96d1867f097b, DeletedAt = , LexemeForm = fr: cross-media, en: Lane, CitationForm = fr: transmit, es: input, en: forecast, LiteralMeaning = fr: MiniLcm.Models.RichString, es: MiniLcm.Models.RichString, MorphType = Enclitic, Senses = System.Collections.Generic.List1[MiniLcm.Models.Sense], Note = fr: MiniLcm.Models.RichString, en: MiniLcm.Models.RichString, Components = System.Collections.Generic.List1[MiniLcm.Models.ComplexFormComponent], ComplexForms = System.Collections.Generic.List1[MiniLcm.Models.ComplexFormComponent], ComplexFormTypes = System.Collections.Generic.List1[MiniLcm.Models.ComplexFormType], PublishIn = System.Collections.Generic.List1[MiniLcm.Models.Publication] } ---- SIL.LCModel.LcmInvalidFieldException : Fieldname 'Affixes' does not exist. Consider using a decorator or review the fieldname for typos. Stack Trace: at FwDataMiniLcmBridge.Api.FwDataMiniLcmApi.CreateEntry(Entry entry, CreateEntryOptions options) in D:\a\languageforge-lexbox\languageforge-lexbox\backend\FwLite\FwDataMiniLcmBridge\Api\FwDataMiniLcmApi.cs:line 1009 at FwLiteProjectSync.Tests.EntrySyncTestsBase.CanSyncRandomEntries(Nullable1 roundTripApiType) in D:\a\languageforge-lexbox\languageforge-lexbox\backend\FwLite\FwLiteProjectSync.Tests\EntrySyncTests.cs:line 194
--- End of stack trace from previous location ---
----- Inner Stack Trace -----
at SIL.LCModel.Infrastructure.Impl.LcmMetaDataCache.GetFieldId2(Int32 clid, String fieldName, Boolean includeBaseClasses)
at SIL.LCModel.DomainServices.VirtualOrderingServices.CheckParentAndGetFieldName(ICmObject parent, Int32 flid)
at SIL.LCModel.DomainServices.VirtualOrderingServices.GetOrderedValue(ICmObject parent, Int32 flid, IEnumerable1 unmodifiedSeq) at SIL.LCModel.DomainServices.VirtualOrderingServices.GetOrderedValue[T](ICmObject parent, Int32 flid, IEnumerable1 unmodifiedSeq)
at SIL.LCModel.DomainImpl.LexEntry.get_VisibleComplexFormBackRefs()
at SIL.LCModel.DomainImpl.LexEntryRef.UpdateComplexFormEntryBackRefs(ICmObject thingAddedOrRemoved, Boolean fAdded)
at SIL.LCModel.DomainImpl.LexEntryRef.AddObjectSideEffectsInternal(AddObjectEventArgs e)
at SIL.LCModel.DomainImpl.CmObject.SIL.LCModel.ICmObjectInternal.AddObjectSideEffects(AddObjectEventArgs e)
at SIL.LCModel.DomainImpl.LcmList1.AddObject(AddObjectEventArgs args) at SIL.LCModel.DomainImpl.LcmReferenceSequence1.AddObject(AddObjectEventArgs args)
at SIL.LCModel.DomainImpl.LcmList1.Add(T obj) at SIL.LCModel.DomainImpl.LexEntry.AddComponent(ICmObject other) at FwDataMiniLcmBridge.Api.FwDataMiniLcmApi.InsertComplexFormComponent(ILexEntry lexComplexForm, ICmObject lexComponent, BetweenPosition1 between) in D:\a\languageforge-lexbox\languageforge-lexbox\backend\FwLite\FwDataMiniLcmBridge\Api\FwDataMiniLcmApi.cs:line 1112
at FwDataMiniLcmBridge.Api.FwDataMiniLcmApi.AddComplexFormComponent(ILexEntry lexComplexForm, ComplexFormComponent component, BetweenPosition`1 between) in D:\a\languageforge-lexbox\languageforge-lexbox\backend\FwLite\FwDataMiniLcmBridge\Api\FwDataMiniLcmApi.cs:line 1096
at FwDataMiniLcmBridge.Api.FwDataMiniLcmApi.<>c__DisplayClass125_0.b__0() in D:\a\languageforge-lexbox\languageforge-lexbox\backend\FwLite\FwDataMiniLcmBridge\Api\FwDataMiniLcmApi.cs:line 996
at SIL.LCModel.Infrastructure.UndoableUnitOfWorkHelper.Do(String undoText, String redoText, IActionHandler actionHandler, Action task)
...

• Fixes CanSyncRandomEntries failure: Fieldname 'Affixes' does not exist #2108

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[myieye]

@copilot I think there's likely a combination of morph type and component/complex-form relationship (the Morph Type of both the component and complex-form are likely relevant) that consistently triggers this exception. I'm not looking for lots of tests I just want 1 simple test that triggers the exception.

Try again.

[Copilot]

@copilot I think there's likely a combination of morph type and component/complex-form relationship (the Morph Type of both the component and complex-form are likely relevant) that consistently trigge...

Replaced all tests with a single focused test (CanCreateAffixEntryWithComplexFormComponents) targeting the exact scenario: an affix MorphType (Prefix) entry with both components and complex forms (commit 6b66e64).

However, the test passes consistently, indicating the error requires additional conditions beyond what I could identify. The original error showed MorphType = Enclitic, but Enclitic is actually treated as a stem type in the code, not an affix type (only Prefix, Suffix, Infix, Circumfix, Simulfix, Suprafix, and *Interfix variants use IMoAffixAllomorph).

The intermittent nature of the failure in the random test suggests it may depend on:

• Specific ordering of create/update operations during sync
• Pre-existing complex form relationships or state
• Combination of morph types between related entries (component vs. complex form)
• Round-trip transformation details

Would you be able to provide more details from a failing test run (e.g., the actual entry data that triggers it, or a seed value for the random generator)?

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• ldml.api.sil.org
  • Triggering command: /usr/share/dotnet/dotnet /usr/share/dotnet/dotnet exec --runtimeconfig /home/REDACTED/work/languageforge-lexbox/languageforge-lexbox/backend/FwLite/FwLiteProjectSync.Tests/bin/Debug/net9.0/FwLiteProjectSync.Tests.runtimeconfig.json --depsfile /home/REDACTED/work/languageforge-lexbox/languageforge-lexbox/backend/FwLite/FwLiteProjectSync.Tests/bin/Debug/net9.0/FwLiteProjectSync.Tests.deps.json /home/REDACTED/work/languageforge-lexbox/languageforge-lexbox/backend/FwLite/FwLiteProjectSync.Tests/bin/Debug/net9.0/testhost.dll --port 36867 --endpoint 127.0.0.1:036867 --role client --parentprocessid 4037 --telemetryoptedin false (dns block)
  • Triggering command: /usr/share/dotnet/dotnet /usr/share/dotnet/dotnet exec --runtimeconfig /home/REDACTED/work/languageforge-lexbox/languageforge-lexbox/backend/FwLite/FwLiteProjectSync.Tests/bin/Debug/net9.0/FwLiteProjectSync.Tests.runtimeconfig.json --depsfile /home/REDACTED/work/languageforge-lexbox/languageforge-lexbox/backend/FwLite/FwLiteProjectSync.Tests/bin/Debug/net9.0/FwLiteProjectSync.Tests.deps.json /home/REDACTED/work/languageforge-lexbox/languageforge-lexbox/backend/FwLite/FwLiteProjectSync.Tests/bin/Debug/net9.0/testhost.dll --port 36257 --endpoint 127.0.0.1:036257 --role client --parentprocessid 4244 --telemetryoptedin false (dns block)
  • Triggering command: /usr/share/dotnet/dotnet /usr/share/dotnet/dotnet exec --runtimeconfig /home/REDACTED/work/languageforge-lexbox/languageforge-lexbox/backend/FwLite/FwLiteProjectSync.Tests/bin/Debug/net9.0/FwLiteProjectSync.Tests.runtimeconfig.json --depsfile /home/REDACTED/work/languageforge-lexbox/languageforge-lexbox/backend/FwLite/FwLiteProjectSync.Tests/bin/Debug/net9.0/FwLiteProjectSync.Tests.deps.json /home/REDACTED/work/languageforge-lexbox/languageforge-lexbox/backend/FwLite/FwLiteProjectSync.Tests/bin/Debug/net9.0/testhost.dll --port 39175 --endpoint 127.0.0.1:039175 --role client --parentprocessid 4431 --telemetryoptedin false (dns block)

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