Fix ubo mesh being updated two times in some cases
Fix ubo mesh being updated two times in some cases

RaananW/Babylon.js,sebavan/Babylon.js,sebavan/Babylon.js,sebavan/Babylon.js,RaananW/Babylon.js,BabylonJS/Babylon.js,RaananW/Babylon.js,BabylonJS/Babylon.js,BabylonJS/Babylon.js