When Revit crashes and allows for the save of a recovery file... allow option to browse the recovery file to sync the change to the cloud model. This was possible when the models were on the a local server or on Revit Server. Overwrite of the cloud model is not an acceptable solution ( https://knowledge.autodesk.com/search-result/caas/sfdcarticles/sfdcarticles/Recovery-options-for-Col... )as there are always other users in a model.