ftintitle: Fix false positives in "feat. X" detection in title (#5442)

Fixes #5441 

This small change explicitly passes the `for_artist` keyword to the
`plugins.feat_tokens` function that constructs the regex for matching
existing "feat. X" parts in song titles.
Previously, it was not passed and set to the default (`True`), which
caused using the pattern intended for the artist field to also be used
for the title field.
This caused some false positives as shown in #5441

beetsplug/ftintitle.py

@@ -37,7 +37,13 @@ def split_on_feat(artist):
 
 def contains_feat(title):
     """Determine whether the title contains a "featured" marker."""
-    return bool(re.search(plugins.feat_tokens(), title, flags=re.IGNORECASE))
+    return bool(
+        re.search(
+            plugins.feat_tokens(for_artist=False),
+            title,
+            flags=re.IGNORECASE,
+        )
+    )
 
 
 def find_feat_part(artist, albumartist):

docs/changelog.rst

@@ -26,7 +26,9 @@ New features:
 
 Bug fixes:
 
-* The detection of a "feat. X" part now also matches such parts if they are in
+* :doc:`plugins/ftintitle`: The detection of a "feat. X" part in a song title does not produce any false
+  positives caused by words like "and" or "with" anymore. :bug:`5441`
+* :doc:`plugins/ftintitle`: The detection of a "feat. X" part now also matches such parts if they are in
   parentheses or brackets. :bug:`5436`
 * Improve naming of temporary files by separating the random part with the file extension.
 * Fix the ``auto`` value for the :ref:`reflink` config option.

test/plugins/test_ftintitle.py

@@ -180,13 +180,12 @@ def test_contains_feat(self):
         assert ftintitle.contains_feat("Alice feat. Bob")
         assert ftintitle.contains_feat("Alice feat Bob")
         assert ftintitle.contains_feat("Alice featuring Bob")
-        assert ftintitle.contains_feat("Alice & Bob")
-        assert ftintitle.contains_feat("Alice and Bob")
-        assert ftintitle.contains_feat("Alice With Bob")
         assert ftintitle.contains_feat("Alice (ft. Bob)")
         assert ftintitle.contains_feat("Alice (feat. Bob)")
         assert ftintitle.contains_feat("Alice [ft. Bob]")
         assert ftintitle.contains_feat("Alice [feat. Bob]")
         assert not ftintitle.contains_feat("Alice defeat Bob")
         assert not ftintitle.contains_feat("Aliceft.Bob")
         assert not ftintitle.contains_feat("Alice (defeat Bob)")
+        assert not ftintitle.contains_feat("Live and Let Go")
+        assert not ftintitle.contains_feat("Come With Me")