What
A new helper compares file paths without caring about upper or lower case on Windows, and on macOS after normalising accented characters to one standard form (NFC). On other systems it compares paths exactly.
Why
Windows and macOS usually treat File.txt and file.txt as the same file, so this matches how those systems behave.
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
The finding does not say which features use this helper.