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fix: lowercase cname rdata in normalization - #4940
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When DNS records already included CNAME Targets with uppercase characters, they'd be stored in uppercase on disk and show as modified in preview. This just adds a normalization step to save to disk in lowercase regardless of what the provider has, and for case-insensitive comparisons so it doesn't create noise in preview/push.
TomOnTime
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Sep 30, 2026
# Issue Not all fields are normalized (changed to lowercase) so that future comparisons do not need to be case aware. This issue was fixed for CNAME in #4940 but other record fields, such as the MX record's Mx, are not normalized. Tracking which record type fields need to be normalized is a PITA. # Resolution Create a function `normalizeRDATA()` which normalizes fields. The function will be code-generated so that future rtypes will be properly normalized. While we're at it, let's normalize hex data to lowercase instead of uppercase like the rest of the world does.
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Apply Normalization to CNAME Target
See commit message(s).
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