addVertexOnClick + limitMarkersToCount doesn't work in Geoman-Pro

[natedx]

When combining addVertexOnClick with limitMarkersToCount in Geoman-Pro, the pm:vertexAdded event is triggered but with a seemingly undefined event when adding a vertex directly on the line.

I tried reproducing a working geoman-pro situation in this JSFiddle :
https://jsfiddle.net/2o6sm3dz/

Swapping geoman for geoman-pro should in theory demonstrate the bug.
The other performance optimizations (limitMarkersToClick, limitMarkersToViewport, limitMarkersToZoom) do not seem affected.