Comment 1 for bug 272520

There's also another related problem. When the image is imported from a samba share in linux, the link is always recorded as absolute, no matter if it was imported from the import command or it was dragged and dropped.
If the image is in a remote location, it's only imported with a relative path if the remote location is mounted with cifs (via fstab).

This issue wouldn't be such a big deal if the image properties dialog had a browse button instead of a text input for the path (Bug #172162)