Your bug report

#66211: 30.0.50; C-x v v in vc-diff does not work with lesser versionf of patch

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 66211@debbugs.gnu.org.

-- 
66211: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=66211
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