Fix incomplete feature state updates in GeometryTile and SourceFeatureState [Vector Tile Layer]. (#3406)

Co-authored-by: nithin.aashik <nithin.aashik@mapmyindia.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Bart Louwers <bart@emeel.net>
Co-authored-by: Bart Louwers <bart.louwers@gmail.com>

src/mbgl/renderer/source_state.cpp

@@ -97,6 +97,8 @@ void SourceFeatureState::coalesceChanges(std::vector<RenderTile>& tiles) {
     stateChanges.clear();
     deletedStates.clear();
 
+    changes.insert(currentStates.begin(), currentStates.end());
+
     if (changes.empty()) {
         return;
     }