Fix Ad Hoc meshing for Transformed layers

[MichaelBuessemeyer]

Ad Hoc meshing is broken for transformed layers. Noticed for a dataset with a configured rotation for all layers: https://webknossos.org/datasets/l4_sample4-65ca4f14010000b2087f2c78/view#3729,3247,1024,0,0.467

Context

Ad hoc meshing should work for such transformed layers instead of silently failing to load the mesh

Expected Behavior

The mesh should be properly loaded.

Current Behavior

Nothing happes. The backend replies to the mesh request with no mesh as there is non at the transformed position and then the frontend stops requesting further mesh chunks. To the user is seems like the request does nothing.

Steps to Reproduce the bug

• Cannot reproduce the bug anymore / needs deeper investigation.

1. Go to https://webknossos.org/datasets/l4_sample4-65ca4f14010000b2087f2c78/view#3729,3247,1024,0,0.467
2. Make sure the transforms are turned on
3. Load ad hoc mesh for centered segment (id: 58624)
4. Notice the mesh not loading

Your Environment for bug

• shouldn't matter

[MichaelBuessemeyer]

My guess is that this is the frontend's fault, as once the transforms are turned off, everything works. Thus, the frontend should use the untransformed position for the requests. Hopefully, a relatively fast fix. 🤞