Merged object fix

Sources/arm/App.hx

@@ -199,7 +199,9 @@ class App extends iron.Trait {
 			var right = appw / 2 + modalW / 2;
 			var top = apph / 2 - modalH / 2;
 			var bottom = apph / 2 + modalH / 2;
-			if (mouse.x < left || mouse.x > right || mouse.y < top || mouse.y > bottom) {
+			var mx = mouse.x + iron.App.x();
+			var my = mouse.y + iron.App.y();
+			if (mx < left || mx > right || my < top || my > bottom) {
 				showFiles = false;
 			}
 		}

Sources/arm/UITrait.hx

@@ -2671,6 +2671,13 @@ void main() {
 		// Import is synchronous for now
 		scaleToBounds();
 
+		if (mergedObject != null) {
+			mergedObject.remove();
+			iron.data.Data.deleteMesh(mergedObject.data.handle);
+			mergedObject = null;
+		}
+		selectPaintObject(paintObjects[0]);
+
 		if (paintObjects.length > 1) {
 			objectsHandle.selected = true;