Your bug report

#77693: 31.0.50; writing .abbrev_defs removes ‘lexical-binding’ cookie

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 77693@debbugs.gnu.org.

-- 
77693: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=77693
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