fixed crash when destroying terrain component
fixed crash when destroying terrain component

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