Do not perform forceInstallPatches if there're other operations with patches

src/Legacy/models/patchlist.cpp

@@ -245,6 +245,7 @@ void PatchList::forceInstallPatches()
 {
     if (active_operations_num_ > 0) {
         qWarning() << "Trying to start force patch installation, while there are already some operations running!";
+    	return;
     }
 
     auto is_database_enabled = [](QString db_name) -> bool {