diff --git a/test/helper.py b/test/helper.py
index 1070e0668..28c21b2eb 100644
--- a/test/helper.py
+++ b/test/helper.py
@@ -196,15 +196,7 @@ def expect_dict(self, got_dict, expected_dict):
 
 def sanitize_got_info_dict(got_dict):
     IGNORED_FIELDS = (
-        # Format keys
-        'url', 'manifest_url', 'format', 'format_id', 'format_note', 'width', 'height', 'resolution',
-        'dynamic_range', 'tbr', 'abr', 'acodec', 'asr', 'vbr', 'fps', 'vcodec', 'container', 'filesize',
-        'filesize_approx', 'player_url', 'protocol', 'fragment_base_url', 'fragments', 'preference',
-        'language', 'language_preference', 'quality', 'source_preference', 'http_headers',
-        'stretched_ratio', 'no_resume', 'has_drm', 'downloader_options',
-
-        # RTMP formats
-        'page_url', 'app', 'play_path', 'tc_url', 'flash_version', 'rtmp_live', 'rtmp_conn', 'rtmp_protocol', 'rtmp_real_time',
+        *YoutubeDL._format_fields,
 
         # Lists
         'formats', 'thumbnails', 'subtitles', 'automatic_captions', 'comments', 'entries',
diff --git a/test/test_YoutubeDL.py b/test/test_YoutubeDL.py
index 7637297be..f9b40501d 100644
--- a/test/test_YoutubeDL.py
+++ b/test/test_YoutubeDL.py
@@ -931,7 +931,7 @@ def get_videos(filter_=None):
         res = get_videos()
         self.assertEqual(res, ['1', '2'])
 
-        def f(v):
+        def f(v, incomplete):
             if v['id'] == '1':
                 return None
             else:
diff --git a/yt_dlp/YoutubeDL.py b/yt_dlp/YoutubeDL.py
index 740f9a7bd..5771fbcf7 100644
--- a/yt_dlp/YoutubeDL.py
+++ b/yt_dlp/YoutubeDL.py
@@ -513,6 +513,16 @@ class YoutubeDL(object):
         'track_number', 'disc_number', 'release_year',
     ))
 
+    _format_fields = {
+        # NB: Keep in sync with the docstring of extractor/common.py
+        'url', 'manifest_url', 'ext', 'format', 'format_id', 'format_note',
+        'width', 'height', 'resolution', 'dynamic_range', 'tbr', 'abr', 'acodec', 'asr',
+        'vbr', 'fps', 'vcodec', 'container', 'filesize', 'filesize_approx',
+        'player_url', 'protocol', 'fragment_base_url', 'fragments', 'is_from_start',
+        'preference', 'language', 'language_preference', 'quality', 'source_preference',
+        'http_headers', 'stretched_ratio', 'no_resume', 'has_drm', 'downloader_options',
+        'page_url', 'app', 'play_path', 'tc_url', 'flash_version', 'rtmp_live', 'rtmp_conn', 'rtmp_protocol', 'rtmp_real_time'
+    }
     _format_selection_exts = {
         'audio': {'m4a', 'mp3', 'ogg', 'aac'},
         'video': {'mp4', 'flv', 'webm', '3gp'},
@@ -2541,7 +2551,7 @@ def is_wellformed(f):
 
         info_dict, _ = self.pre_process(info_dict)
 
-        if self._match_entry(info_dict) is not None:
+        if self._match_entry(info_dict, incomplete=self._format_fields) is not None:
             return info_dict
 
         self.post_extract(info_dict)
diff --git a/yt_dlp/utils.py b/yt_dlp/utils.py
index e359c6bba..e9eaf7b4e 100644
--- a/yt_dlp/utils.py
+++ b/yt_dlp/utils.py
@@ -3545,6 +3545,11 @@ def _match_one(filter_part, dct, incomplete):
         '=': operator.eq,
     }
 
+    if isinstance(incomplete, bool):
+        is_incomplete = lambda _: incomplete
+    else:
+        is_incomplete = lambda k: k in incomplete
+
     operator_rex = re.compile(r'''(?x)\s*
         (?P<key>[a-z_]+)
         \s*(?P<negation>!\s*)?(?P<op>%s)(?P<none_inclusive>\s*\?)?\s*
@@ -3583,7 +3588,7 @@ def _match_one(filter_part, dct, incomplete):
         if numeric_comparison is not None and m['op'] in STRING_OPERATORS:
             raise ValueError('Operator %s only supports string values!' % m['op'])
         if actual_value is None:
-            return incomplete or m['none_inclusive']
+            return is_incomplete(m['key']) or m['none_inclusive']
         return op(actual_value, comparison_value if numeric_comparison is None else numeric_comparison)
 
     UNARY_OPERATORS = {
@@ -3598,7 +3603,7 @@ def _match_one(filter_part, dct, incomplete):
     if m:
         op = UNARY_OPERATORS[m.group('op')]
         actual_value = dct.get(m.group('key'))
-        if incomplete and actual_value is None:
+        if is_incomplete(m.group('key')) and actual_value is None:
             return True
         return op(actual_value)
 
@@ -3606,8 +3611,11 @@ def _match_one(filter_part, dct, incomplete):
 
 
 def match_str(filter_str, dct, incomplete=False):
-    """ Filter a dictionary with a simple string syntax. Returns True (=passes filter) or false
-        When incomplete, all conditions passes on missing fields
+    """ Filter a dictionary with a simple string syntax.
+    @returns           Whether the filter passes
+    @param incomplete  Set of keys that is expected to be missing from dct.
+                       Can be True/False to indicate all/none of the keys may be missing.
+                       All conditions on incomplete keys pass if the key is missing
     """
     return all(
         _match_one(filter_part.replace(r'\&', '&'), dct, incomplete)