Symlinks to the same media used for collections/grouping cause duplicates

Description of the bug Symlinks that resolve to the same directory cause duplicate items in library. Jellyfin should realize that if a symlink (or the contents of a symlinked directory) are the same file as elsewhere in the system, those are the same item and should not result in a duplicate. I use dirs with symlinks for an automated way to setup collections/playlists, and also for use with Kodi. Example: All of these should only result in a single instance of each movie, but in fact it ends up as 3 copies of each movie. Reproduction steps 1. Create symlinks to directories that contain specific titles in the same library 2. Run a scan of the library 3. See that duplicate entries are created, despite the fact that the media files under those directories are the exact same files that have already been indexed. What is the current _bug_ behavior? Duplicate entries for the same titles are created, despite the fact that the media files are the exact same files that have already b…