Your bug report

#69893: 29.2; Valid key "<TAB>" not accepted by `keymap-global-set'

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 69893@debbugs.gnu.org.

-- 
69893: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=69893
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