Bug / Problem with invisible actor and constraints

[Roland Peffer <gdevel clixxun com>]

I am facing the following problem:

I have an invisible actor A bound by constraints somehow to the position of another visible actor  B.
If I call clutter_actor_show on actor A, the position is not updated to the actual position of actor B 
regarding the constraints.
Instead it shows up on the position that where computed by the constraints where it was visible last time, 
what can be even all zero if it was never visible.

So the fix would be that if an actor gets switched to visible, and has constraints, these have to be updated 
in that moment?!

Any comments?

Roland