Jan Müller 66ff724acf Fix the probing of m4a metadata
The composer is not set in some of my m4a files. For some reason
TagLibSharp returns the composer as an empty string in this case. This
causes an exception in PeopleHelper.AddPerson, and thus probing fails.

IMHO we can simply ignore empty values.

Fixes: #10061
2023-07-31 22:19:06 +02:00
..
2023-05-15 13:12:24 +02:00