fix multi-changes to standart material when flag was setting to false, leading to not updating material shader properly
fix multi-changes to standart material when flag was setting to false, leading to not updating material shader properly

sereepap2029/playcanvas,aidinabedi/playcanvas-engine,H1Gdev/engine,sereepap2029/playcanvas,H1Gdev/engine,MicroWorldwide/PlayCanvas,aidinabedi/playcanvas-engine,playcanvas/engine,MicroWorldwide/PlayCanvas,guycalledfrank/engine,sereepap2029/playcanvas,playcanvas/engine,guycalledfrank/engine