Physics trigger event fix (#1725)
Physics trigger event fix (#1725)

* fire end events correctly

* slight code shuffle

* add comments

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