fixed crash, when a physics controller is serialized / deserialized
fixed crash, when a physics controller is serialized / deserialized

gamedevforks/LumixEngine,zhouxh1023/LumixEngine,galek/LumixEngine,galek/LumixEngine,gamedevforks/LumixEngine,zhouxh1023/LumixEngine,dreamsxin/LuxEngine,dreamsxin/LuxEngine,JakubLukas/LumixEngine,JakubLukas/LumixEngine,JakubLukas/LumixEngine