Hi Petr,

> Also, it would be nice if a preselected curve got selected again in
> case of canceling a Fillet or Chamfer command like it currently
> works for surfaces, edges and faces.

I have now fixed this for the next beta - the standard selection restoration mechanism was not kicking in for this case since fillet curve corners does a kind of special case selection stuff with that vertex selection stage.

Thanks,

- Michael