Merge branch 'ptmikheev-master-patch-07827' into 'master'

Do several additional passes of garbage collecting in LuaManager::clear()

See merge request OpenMW/openmw!2672

apps/openmw/mwlua/luamanagerimp.cpp

@@ -313,6 +313,8 @@ namespace MWLua
         }
         mGlobalStorage.clearTemporaryAndRemoveCallbacks();
         mPlayerStorage.clearTemporaryAndRemoveCallbacks();
+        for (int i = 0; i < 5; ++i)
+            lua_gc(mLua.sol(), LUA_GCCOLLECT, 0);
     }
 
     void LuaManager::setupPlayer(const MWWorld::Ptr& ptr)