Just tested with Focal's Nautilus 1:3.36.3-0ubuntu1.20.04.1 and this
does not happen.
Followed the same scenario and renamed 2 out of 4 sample files:
1) Using Nautilus itself.
2) Closed Nautilus and renamed the files in terminal.
In both cases Nautilus automatically regenerated the thumbnails.
Thank you for your bug report, indeed there are similar reports on
gitlab
https://gitlab.gnome.org/GNOME/nautilus/-/issues/1484
** Bug watch added: gitlab.gnome.org/GNOME/nautilus/-/issues #1484
https://gitlab.gnome.org/GNOME/nautilus/-/issues/1484
** Changed in: nautilus (Ubuntu)
Importan
