fix: Missing applied filters indicator (#22137)

superset/utils/core.py

@@ -1182,8 +1182,7 @@ def merge_extra_filters(form_data: Dict[str, Any]) -> None:
     # that are external to the slice definition. We use those for dynamic
     # interactive filters like the ones emitted by the "Filter Box" visualization.
     # Note extra_filters only support simple filters.
-    applied_time_extras: Dict[str, str] = {}
-    form_data["applied_time_extras"] = applied_time_extras
+    form_data.setdefault("applied_time_extras", {})
     adhoc_filters = form_data.get("adhoc_filters", [])
     form_data["adhoc_filters"] = adhoc_filters
     merge_extra_form_data(form_data)
@@ -1226,7 +1225,7 @@ def merge_extra_filters(form_data: Dict[str, Any]) -> None:
                 time_extra_value = filtr.get("val")
                 if time_extra_value and time_extra_value != NO_TIME_RANGE:
                     form_data[time_extra] = time_extra_value
-                    applied_time_extras[filter_column] = time_extra_value
+                    form_data["applied_time_extras"][filter_column] = time_extra_value
             elif filtr["val"]:
                 # Merge column filters
                 filter_key = get_filter_key(filtr)

tests/integration_tests/utils_tests.py

@@ -539,6 +539,18 @@ class TestUtils(SupersetTestCase):
         merge_extra_filters(form_data)
         self.assertEqual(form_data, expected)
 
+    def test_merge_extra_filters_when_applied_time_extras_predefined(self):
+        form_data = {"applied_time_extras": {"__time_range": "Last week"}}
+        merge_extra_filters(form_data)
+
+        self.assertEqual(
+            form_data,
+            {
+                "applied_time_extras": {"__time_range": "Last week"},
+                "adhoc_filters": [],
+            },
+        )
+
     def test_merge_request_params_when_url_params_undefined(self):
         form_data = {"since": "2000", "until": "now"}
         url_params = {"form_data": form_data, "dashboard_ids": "(1,2,3,4,5)"}