SaveGeometry does not save timesteps correctly in the main .pvd file

FIle->SaveGeometry is a nice tools to save the current geometry, including movement created with the animation view.

However, the top level .pvd file is missing the timesteps for some reasons.

Steps to reproduce :

• Open ParaView
• Source -> Box, Apply
• Animation View
• Animate Box center from 0 to 1
• File -> SaveGeometry -> box.pvd
• Timesteps are save
• ResetSession
• Open box.pvd
• no timesteps are available, this is a bug
• ResetSession
• Open box/box_sourceXXX*.vtm
• File series is correctly opened and animation works