Hi, I've found that this issue by other packaging.
piuparts reports that the purging fonts-dejavu-core left files.
Here is the log about piuparts report:
1m55.2s DEBUG: Recording chroot state
1m56.2s ERROR: FAIL: Package purging left files on system:
/usr/local/share/fonts/ not owned
/usr/local/share/fonts/.uuid not owned
/usr/share/fonts/ owned by: fonts-dejavu-core
/usr/share/fonts/.uuid not owned
/usr/share/fonts/truetype/ owned by: fonts-dejavu-core
/usr/share/fonts/truetype/.uuid not owned
/usr/share/fonts/truetype/dejavu/ owned by: fonts-dejavu-core
/usr/share/fonts/truetype/dejavu/.uuid not owned
1m56.2s ERROR: FAIL: Installation and purging test.
1m56.5s DEBUG: Starting command: ['umount', '/tmp/tmp9r68_bfp/dev/shm']
Regards,