About renaming already indexed directories

[tassoman]

Hello there, I'm a relatively new happy jellyfin user. 
I have a bunch of libraries who "watches" files and directories inside two NASes, by setting two "root" directories.
When I obtain files, they auto-magically go, moved inside the needed library, but sometimes filename or directory name, doesn't fully match "the jellyfin way" for obtaining metadata.

In this rare case, I force metadata reindex by pasting IMDB (or else) online library. Although the directory name is messed-up, the re-indexing works fine.

What happens if I rename my messed up directory in "the jellyfin" way? Will I have two records in the catalog? (one new working record, and another old broken record).  Or jellyfin is able to understand old directory "is gone" and new directory must be indexed?

What happens if I delete a directory? Does jellyfin "understand" catalog's record must be deleted?

NASes root directories are mounted by NFS locally, then a soft symlink is pointing at them. This is useful when you want to move around your collection. Just stop the jellyfin, move around the library's root, update the symlink, restart jellyfin.

[TheDreadPirate]

When you rename a file/folder jellyfin should not create duplicate entries. However, counter intuitively, you need to do a library level scan for jellyfin to pick up the change.

But it shouldn't create duplicate entries.