Your bug report

#65347: 29.1; Underscore in query replace prevents case-matching

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 65347@debbugs.gnu.org.

-- 
65347: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=65347
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