Your bug report

#63312: 29.0.90; set-frame-parameter sometimes called with dead frame when quitting ediff

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 63312@debbugs.gnu.org.

-- 
63312: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=63312
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