%CompleteName% does not print filename correctly if it contains a '%' character

[RobertKrawitz]

This is MediaInfo 23.03:

$ mediainfo "--Output=General;%Duration% %CompleteName%\n" test.mp4 test_%TEST%.mp4
133700 test.mp4
964134 test_.mp4

If the file name contains just one % character, it hangs:

$ mediainfo "--Output=General;%Duration% %CompleteName%\n" test.mp4 test_%TEST.mp4
...

My use case is that I use %...% as comment syntax within filenames.