Don't overwrite userId when editing a postit
Don't overwrite userId when editing a postit, original user who placed the postit should always stay as the owner. This doesn't affect editing & saving permissions. Room owners, users with rights & an owner of a sticky when a sticky-pole is present may still edit and remove their postit.
Currently MS will overwrite the userId when you edit someones sticky which shouldn't happen.
Edited by Yordi