Tags: patch The customization choices for tab-first-completion are double-quoted. The attached patch fixes this. Can I install it on the release branch? In GNU Emacs 28.0.91 (build 4, x86_64-pc-linux-gnu, GTK+ Version 3.24.30, cairo version 1.16.0) of 2022-01-13 Repository revision: 34ca4ff9a52d38250f70f578fd045490b4eef4f9 Repository branch: emacs-28 Windowing system distributor 'The X.Org Foundation', version 11.0.12013000 System Description: Debian GNU/Linux rodete Configured using: 'configure --enable-gcc-warnings=warn-only --enable-gtk-deprecation-warnings --without-pop --with-mailutils --enable-checking=all --enable-check-lisp-object-type --with-modules 'CFLAGS=-O0 -ggdb3''