Fix streamtags remove list

tests/integration/subtrack_mapping/test_cli_bundle.py

@@ -184,6 +184,64 @@ class SubtrackMappingBundleTests(unittest.TestCase):
             ["video-0", "audio-2", "audio-1", "subtitle-3"],
         )
 
+    def test_no_pattern_stream_remove_list_clears_copied_stream_metadata(self):
+        source_filename = "remove_tags_s01e01.mkv"
+        self.write_config(
+            {
+                "metadata": {
+                    "streams": {
+                        "remove": ["BPS"],
+                    }
+                }
+            }
+        )
+        source_path = create_source_fixture(
+            self.workdir,
+            source_filename,
+            [
+                SourceTrackSpec(
+                    TrackType.VIDEO,
+                    identity="video-0",
+                    extra_tags={"BPS": "remove-me", "KEEP_ME": "video-keep"},
+                ),
+                SourceTrackSpec(
+                    TrackType.AUDIO,
+                    identity="audio-1",
+                    language="eng",
+                    title="Main Audio",
+                    extra_tags={"BPS": "remove-me", "KEEP_ME": "audio-keep"},
+                ),
+            ],
+        )
+
+        completed = run_ffx_convert(
+            self.workdir,
+            self.home_dir,
+            self.database_path,
+            "--video-encoder",
+            "copy",
+            "--no-pattern",
+            "--no-tmdb",
+            "--no-prompt",
+            "--no-signature",
+            str(source_path),
+        )
+        self.assertCompleted(completed)
+
+        output_path = expected_output_path(self.workdir, source_filename)
+        streams = ffprobe_json(output_path)["streams"]
+
+        self.assertEqual(
+            [stream["codec_type"] for stream in streams],
+            ["video", "audio"],
+        )
+        self.assertEqual(get_tag(streams[0], "THIS_IS"), "video-0")
+        self.assertEqual(get_tag(streams[0], "KEEP_ME"), "video-keep")
+        self.assertIsNone(get_tag(streams[0], "BPS"))
+        self.assertEqual(get_tag(streams[1], "THIS_IS"), "audio-1")
+        self.assertEqual(get_tag(streams[1], "KEEP_ME"), "audio-keep")
+        self.assertIsNone(get_tag(streams[1], "BPS"))
+
     def test_pattern_validation_fails_for_nonexistent_source_track_reference(self):
         source_filename = "invalid_s01e01.mkv"
         source_path = create_source_fixture(