Comment 3 for bug 388910

From the traceback, it seems that one image in the pictures library has a None shot_time, which is unexpected.
That image doesn't contain a "shot time" information in its metadata, so the file modification time should be used.
I tried to reproduce the bug with the same image on windows and linux, no luck, the image is correctly indexed with a shot time (the file modification time).
I'll try to see if re-indexing on Jutta's machine solves the problem, but in any case we can be more tolerant and avoid this kind of bug by try/except'ing.