Fix nested caplog.filtering with same filter object

src/_pytest/logging.py

@@ -585,11 +585,14 @@ def filtering(self, filter_: logging.Filter) -> Generator[None]:
 
         .. versionadded:: 7.5
         """
-        self.handler.addFilter(filter_)
+        filter_was_present = filter_ in self.handler.filters
+        if not filter_was_present:
+            self.handler.addFilter(filter_)
         try:
             yield
         finally:
-            self.handler.removeFilter(filter_)
+            if not filter_was_present:
+                self.handler.removeFilter(filter_)
 
 
 @fixture

testing/logging/test_fixture.py

@@ -206,6 +206,25 @@ def filter(self, record: logging.LogRecord) -> bool:
     assert unfiltered_tuple == ("test_fixture", 20, "handler call")
 
 
+def test_with_statement_filtering_nested_same_filter(
+    caplog: pytest.LogCaptureFixture,
+) -> None:
+    class NoCaptureFilter(logging.Filter):
+        def filter(self, _record: logging.LogRecord) -> bool:
+            return False
+
+    filter_obj = NoCaptureFilter()
+
+    with caplog.at_level(logging.INFO):
+        with caplog.filtering(filter_obj):
+            logger.info("Will not be captured")
+            with caplog.filtering(filter_obj):
+                logger.info("Will also not be captured")
+            logger.info("Will still not be captured")
+
+    assert caplog.records == []
+
+
 @pytest.mark.parametrize(
     "level_str,expected_disable_level",
     [