Group vs. self collisions cause double collision callbacks

[samme]

Version

• Phaser Version: 3.55.2 and earlier

Description

Create an Arcade Physics group with two overlapping members. Add an overlap collider with a collision callback. The callback is called twice per collider update or world step.

The same will happen if you use a collide collider with custom separation (no separation).

It will not happen with an ordinary group or array or when the physics world useTree is disabled.

Example Test Code

https://codepen.io/samme/pen/GRmKzPE

See failed assertion in console.

Additional Information

I think group vs. self checks mustn't search the body tree.

[photonstorm]

Thanks for opening this issue, and for submitting a PR to fix it. We have merged your PR into the master branch and attributed the work to you in the Change Log. If you need to tweak the code for whatever reason please submit a new PR.