[Qgis-developer] GRASS Plugin Split features results in corrupted topology

[m roy]

Found this issue testing GRASS plugin in edit mode:

Draw a closed boundary in a GRASS vector layer

add a centroid inside the boundary

now I need to add a node on the boundary
(cannot find how to do that is there a way to
  add a node on a boundary?)

split features seems to do the trick but
the boundary become red (signaling some topology error)

exit editing and save

restart editing and a centroid is displayed where i used the
split feature tool, on the boundary, i was expecting to find
a node instead.

I hope this is clear,

Roy.