Your bug report

#21983: emacs-25: cconv-convert makes invalid transformations on `setq' forms.

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 21983@debbugs.gnu.org.

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21983: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=21983
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