Settings Table VIII A-11 Creates *.xxx files from Movie Poster Files

Settings Table VIII A-11 Creates *.xxx files from Movie Poster Files
to reproduce this behaviour:
-upload a movie with corresponding poster file to your depot
-create a new empty album
-import the movie with poster file to the newly created album

/wp-content/uploads/wppa-source/album-<number>/ will only contain the .jpg file.
So far so good.

Now go to Settings, “Table VIII A-11 Remake” and click on the Start Button (or the Start as Cron Job button).
Wait until the job finishes.
Check /wp-content/uploads/wppa-source/album-<number>/ again.
You will see that a new file with the extension .xxx has been created. Its contents are ecaxtly the same as the .jpg file