When you are working in a Workshared Project, that utilises Shared Coordinates and Linked Revit Models, one side effect is that whenever you alter the location of a Linked file you become The Owner of the ‘Project Info’ Workset in the linked file. Especially if you don’t save the position back or synchronise the file.
So if you open a linked file, even to have a look and accidentally move one of the linked models, you may be getting a call from one of the other Revit users to relinquish the ‘Project Info’ Workset, even if you think you haven’t saved anything.
Revit knows where you have been and what you have been doing!!!
It is watching you right now!!! :)