What's the situation respect to pharo-contributions fork?

Now that Roassal3 is in Pharo 9, and `BaselineOfRoassal3>>#dependencies:` depends on `github://pharo-contributions/Geometry/src`, I wonder what's the more convenient way to contribute. The https://github.com/pharo-contributions/Geometry has no "Issues" tab, and it isn't good to report the issue here but push a PR in the fork.