Quoting a portion of a commit message:
On Ubuntu 22.04 LTS make distcheck fails like this:
$ make distcheck ... ERROR: files left in build directory after distclean: ./po/.intltool-merge-cache.lock make: *** [Makefile:920: distcleancheck] Error 1 make: Leaving directory '/builds/GNOME/gparted/gparted-1.4.0-git/_build/sub' make: *** [Makefile:849: distcheck] Error 1
This was picked up by the GitLab ubuntu_test CI job after the Ubuntu 22.04 LTS release and the official Ubuntu docker image labelled latest was updated to match, circa April 2022. This is a known issue with intltool >= 0.51.0-5.1, first included in Ubuntu 22.04 LTS.