Quitting command-line window after c_CTRL-F leads to bad state

[axelf4]

Issue type

• Bug report

Environment

Emacs version: GNU Emacs 27.1 (build 1, x86_64-pc-linux-gnu) Operating System: NixOS 20.09 Evil version: 1.14.0 Evil installation type: MELPA Graphical/Terminal: Terminal with tmux Tested in a make emacs session (see CONTRIBUTING.md): No, but tested with only straight.el and Evil

Reproduction steps

• Start Emacs
• Press : to enter command-line mode
• Press CTRL-F to open the command-line window
• Press CTRL-WCTRL-Q to quit the command-line window

Expected behavior

After quitting the command-line window we should have exited command-line mode and be back in command mode.

Actual behavior

Instead all operators now act immediately on lines without waiting for motion and the mode indicator in the bottom-left is stuck showing :.

Further notes

[ChoppinBlockParty]

Can observe the same issue with Emacs 26.3 on Ubuntu 20 using X11 UI.