Your bug report

#24828: 26.0.50; Renaming of display-buffer-in-major-side-window broke which-key.el

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 24828@debbugs.gnu.org.

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24828: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=24828
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