While checking OLMIS-5625, I noticed that when I delete data from fields that are not required, the changes are not saved.
Log in as an administrator;
Go to Administration > Supervisory Nodes;
Click the Edit button next to any Supervisory Node;
Delete "Associated Facility", "Parent Node", remove Child Node and click "Update Supervisory Node button;
Return to editing the previously selected Supervisory Node.
The changes have not been saved.
After clicking "Update Supervisory Node" button the changes should be saved.