fix(issues): Increase top tag total value with empty keys

In #102049 added the empty tags, but noticing the total values no longer makes sense. Increases the total count when empty values is active

Author: scttcper

src/sentry/tagstore/snuba/backend.py

@@ -749,6 +749,12 @@ def get_group_tag_keys_and_top_values(
                 ]
                 values_by_key[k] = {vk: vd for vk, vd in sorted_items}
 
+            # Increase the count of the key by the count of empty values
+            for keyobj in keys_with_counts:
+                stats = empty_stats_map.get(keyobj.key)
+                if stats and stats.get("count", 0) > 0:
+                    keyobj.count = (keyobj.count or 0) + stats["count"]
+
         for keyobj in keys_with_counts:
             key = keyobj.key
             values = values_by_key.get(key, dict())

tests/sentry/issues/endpoints/test_group_tags.py

@@ -341,6 +341,7 @@ def test_include_empty_values_for_specific_key_with_feature(self) -> None:
         values = {v["value"] for v in response.data[0]["topValues"]}
         assert values == {"", "bar"}
         assert response.data[0]["topValues"][0]["count"] == 1
+        assert response.data[0]["totalValues"] == 2
 
     def test_include_empty_values_in_all_tags_with_feature(self) -> None:
         event = self.store_event(
@@ -378,6 +379,7 @@ def test_include_empty_values_in_all_tags_with_feature(self) -> None:
         foo = next((t for t in response.data if t["key"] == "foo"), None)
         assert foo is not None
         assert {v["value"] for v in foo["topValues"]} == {"", "bar"}
+        assert foo["totalValues"] == 2
 
     def test_flags(self) -> None:
         event1 = self.store_event(