Your bug report

#75714: 31.0.50; Empty search string gives error in Customize buffer

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 75714@debbugs.gnu.org.

-- 
75714: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=75714
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