fix table

tests/unit/test_tag_table_screen_state.py

@@ -722,6 +722,33 @@ class TagTableScreenStateTests(unittest.TestCase):
         self.assertIn("English Full", screen.tracksTable.rows["row-0"])
         self.assertIs(target_track, screen.getSelectedTrackDescriptor())
 
+    def test_inspect_details_screen_update_tracks_blanks_irrelevant_attachment_fields(self):
+        attachment_track = TrackDescriptor(
+            index=4,
+            source_index=4,
+            sub_index=0,
+            track_type=TrackType.ATTACHMENT,
+            attachment_format=AttachmentFormat.TTF,
+            tags={"filename": "font.ttf", "mimetype": "font/ttf"},
+        )
+
+        screen = object.__new__(InspectDetailsScreen)
+        screen.tracksTable = FakeTagTable()
+        screen._sourceMediaDescriptor = FakeMediaDescriptor([attachment_track])
+        screen._targetMediaDescriptor = None
+        screen._currentPattern = None
+        screen._trackRowData = {}
+        screen._applyNormalization = False
+
+        screen.updateTracks()
+
+        row = screen.tracksTable.rows["row-0"]
+
+        self.assertEqual("4", row[0])
+        self.assertEqual(" ", row[3])
+        self.assertEqual(" ", row[7])
+        self.assertEqual(" ", row[8])
+
     def test_inspect_details_screen_maps_target_selection_back_to_source_track(self):
         source_track = TrackDescriptor(
             index=3,