[Shotwell] event names getting randomly mangled

[Lucas B. Cohen]

Dear list,

This morning my version 0.11.6 of Shotwell (installed out of the Debian
testing repository) started horribly mangling all the event names that I
had ever renamed from their default (the <date> string).

Results are very different and seemingly random after each program
launch, and can be summarized as follows:

- some are now labelled 'thumb000000000000nnnn' (hex)
- some have a single character such as a letter, a digit, '&', '(', '*'
or 2-byte UTF-8 characters
- some are a multiple seemingly random characters
- some are names I had given to events, but they are associated with
another event
- some are completely blank

This behavior occurs with two different Shotwell databases.

One of the last actions I performed in Shotwell before closing it and
reopening it was to muck around in an import folder and deleting a
couple of files, namely <name>_modified.jpg and a
<name>_PEF_shotwell.jpg, in an attempt to understand how exactly it is
that Shotwell uses them. Restoring them did not stop the name mangling,
however. I'd be surprised if that had something to do with what I'm
seeing now.

I'm not seeing anything striking in .cache/shotwell/shotwell.log : only
an 'unable to fetch high-quality thumbnail' [CRT] entry matching the
same PEF file I messed around with and mentioned above.

How can I find out what is causing this ?