While I was importing photos from a SD card in Shotwell, my laptop has crashed (shutdown because of over-heating). Now, I can no longer launch Shotwell:

$ shotwell

**

ERROR:x86_64-linux-gnu/db/VersionTable.c:104:version_table_construct: assertion failed: (res == SQLITE_OK)

If I move the .db file ~/.shotwell/data/photo.db elsewhere so it is no longer present (but backed-up), shotwell will launch, but will rebuild its library, which will be empty.
I can re-import the folders shotwell creates, but I lose nearly all meta-data (most importantly the "folders", or events, and their main picture)

Is there a way to repair/rebuild/restore photo.db?
How can I see what's inside? how bad it's damaged?

Or is there another way to get back my events and imports?