Your bug report

#27647: 26.0.50; Line numbers implemented natively disappear momentarily when frame out of focus

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 27647@debbugs.gnu.org.

-- 
27647: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=27647
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