Your bug report

#64071: 28.2; smerge-diff creates *vc-diff* without setting it up

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 64071@debbugs.gnu.org.

-- 
64071: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=64071
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