versions show as separate titles for some movies

[TheDreadPirate]

After some testing, and fixing the typo that caused 5cm per Second to not merge, I think @Efficient_Good_5784 is right.  Something about your tag is causing Jellyfin's file name parser to trip up.  I was able to reliably get Jellyfin to merge versions until I tried tags similar to yours.

My original tags worked.

Code:

chris@rat-trap:/media/storage2/testMovies/5 Centimeters per Second (2007)$ ll
total 7269252
drwxrws---  2 chris jellyfin      4096 Aug  7 12:02  ./
drwxrws--- 16 chris jellyfin      4096 Aug  7 12:36  ../
-rw-rw----  1 chris jellyfin 2403346240 May 15 14:25 '5 Centimeters per Second (2007) - [FOSS Audio].mkv'
-rw-rw----  1 chris jellyfin 5040346798 May 15 13:56 '5 Centimeters per Second (2007) - [DTS Audio].mkv'

But tags similar to yours did not work. (Resolutions in the tag were random for testing).

Code:

chris@rat-trap:/media/storage2/testMovies/5 Centimeters per Second (2007)$ ll
total 7269252
drwxrws--- 2 chris jellyfin      4096 Aug  7 12:39  ./
drwxrws--- 8 chris jellyfin      4096 Aug  7 12:41  ../
-rw-rw---- 1 chris jellyfin 2403346240 May 15 14:25 '5 Centimeters per Second (2007) - [1920x816p].mkv'
-rw-rw---- 1 chris jellyfin 5040346798 May 15 13:56 '5 Centimeters per Second (2007) - [720x300p].mkv'

But just the vertical resolution worked.

Code:

chris@rat-trap:/media/storage2/testMovies/5 Centimeters per Second (2007)$ ll
total 7269252
drwxrws--- 2 chris jellyfin      4096 Aug  7 12:53  ./
drwxrws--- 8 chris jellyfin      4096 Aug  7 12:54  ../
-rw-rw---- 1 chris jellyfin 5040346798 May 15 13:56 '5 Centimeters per Second (2007) - [300p].mkv'
-rw-rw---- 1 chris jellyfin 2403346240 May 15 14:25 '5 Centimeters per Second (2007) - [816p].mkv

Another thing I noticed is that even with debug logging there are no log messages for merging items.

https://github.com/jellyfin/jellyfin/blo...er.cs#L187

Try changing the tag to just the vertical resolution.