Errors which occur during Edit Properties (eg. such as editing properties on a model node which has since been deleted, or attempting to activate an uploaded XML model which has a duplicate prefix) do not result in an error message or dialog displayed. Instead, the Edit Properties panel remains open, behaving as though the Save button had not been clicked.
Steps to re-create:
Upload and activate a content model named "contentModelA" with the prefix "cmc"
Upload and activate a content model named "contentModelB" with the prefix "cmc"
Share displays an error message
No error is displayed, and the Edit Properties panel remains open
This issue may require work on both repo and Share.