(Blender 2.8) X Mirror Editing is broken for a while now

So, X Mirror and Topology Mirror Editing doesn’t work in 2.8 since November 2018.


Does anyone know, when the Mesh Mirror Editing will work again or does anyone knows the current status of the bugfixing?

Must be a really huge bug if it takes that long to fix it. I really hope it will be fixed soon.