Dead keys trail cursor after entering text

[Alfonso Muñoz-Pomer Fuentes]

$ lsb_release -rd
No LSB modules are available.
Description: Ubuntu 24.04 LTS
Release: 24.04

$ apt-cache policy gnome-text-editor
gnome-text-editor:
  Installed: 46.1-1
  Candidate: 46.1-1
  Version table:
 *** 46.1-1 500
        500 http://gb.archive.ubuntu.com/ubuntu noble/main amd64 Packages
        100 /var/lib/dpkg/status

After entering a key after a dead key, the dead key glyph should disappear from the cursor.

Every time I enter a key after a dead key, the dead key glyph follows the cursor around until I press Backspace, which deletes the dead key glyph *and* the last letter I typed.

Please, see a video of the bug here: https://youtu.be/RF5s0UT3KoE

This doesn’t happen in any other Gnome application that I’ve tried.