bendk/miro — comment on commit 32a0753b93c0c3c9abbf9fd09d1262f5dcab46a2
File: tv/lib/databaseupgrade.py line 3668
By bendk:

Ahh, I see. The pref is for new items only. There are also buttons to initiate a lookup for all current items and cancel lookup for all current items. So it's pretty easy for a user to re-scan the old items if they need to.