.......because it is still linked to the jpg file.
But if I follow the MWG standard and do not use XMP files for jpg then the file is useless i.e.
it contains no information about the jpg file nor will it ever.
I just did a bit of testing:
IM does delete the XMP file when the jpg file is deleted.
IM does not copy/move the XMP file when either NEF of jpg file is copied/moved
(to a folder) outside of IM.
When moving both files it leaves the XMP file behind (orphaned).
It seems to remove the XMP file when jpg
and NEF files are moved to another folder
within IM.
If I move the jpg file alone to a different folder IM moves the XMP file with it even though the NEF file is left behind!
Same if I only move the NEF file.
I suppose there is no built-in way to delete orphaned XMP files. Maybe it would be appropriate for DIAGNOSTICS (or Compact and Optimize) to delete those files.