Support "Save As" for custom editors #14972
Open
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What it does
Closes #14966
Allows
Saveable
instances to implement their ownsaveAs
routine. This is required to fix saving for custom editors. All other editors can continue to just serialize their contents to use the generic "Save As" function.How to test
Follow the reproduction steps of #14966 and ensure that the "Save As" functionality works for both the
.pawDraw
and.cscratch
files.Review checklist
Reminder for reviewers