fixed potential crash bug when reading from artwork info cache
authorHolger Schemel <info@artsoft.org>
Sat, 29 Aug 2020 09:57:51 +0000 (11:57 +0200)
committerHolger Schemel <info@artsoft.org>
Sat, 29 Aug 2020 09:57:51 +0000 (11:57 +0200)
This fixes a regression bug from commit 79425634, which allowed for
empty cache entries (as tokens "program_title", "program_copyright"
and "program_company" may be undefined), which may result in crashes
when reading inconsistent or incomplete cache files.


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