Fix scanning of DVD (VIDEO_TS) files

This fixes issue
https://github.com/RuudBurger/CouchPotatoServer/issues/3609
Thanks to @rhodespa

couchpotato/core/plugins/scanner.py

@@ -797,6 +797,10 @@ class Scanner(Plugin):
         identifier = file_path.replace(folder, '').lstrip(os.path.sep) # root folder
         identifier = os.path.splitext(identifier)[0] # ext
 
+        # Exclude file name path if needed (f.e. for DVD files)
+        if exclude_filename:
+            identifier = identifier[:len(identifier) - len(os.path.split(identifier)[-1])]
+
         # Make sure the identifier is lower case as all regex is with lower case tags
         identifier = identifier.lower()
 
@@ -805,9 +809,6 @@ class Scanner(Plugin):
             identifier = path_split[-2] if len(path_split) > 1 and len(path_split[-2]) > len(path_split[-1]) else path_split[-1] # Only get filename
         except: pass
 
-        if exclude_filename:
-            identifier = identifier[:len(identifier) - len(os.path.split(identifier)[-1])]
-
         # multipart
         identifier = self.removeMultipart(identifier)