A dot walked field on a form will update the parent record upon submitting if it was modified. - Known Error

A dot walked field on a form will update the parent record upon submitting if it was modified. Description If a dot-walked field is placed on a form and that field is cleared. When the form is submitted, the parent dot walked record will also be updated.

Example:

The incident form contains both assignment_group and assignment_group.name fields. When raising an incident, the user successfully selects the assignment group but deletes the name from the assignment_group.name field. When the form is submitted, the selected assignment groups' name will be deleted. Steps to Reproduce

Add the assignment_group.name field to the OOTB Incident form Create a new incident, fill in mandatory fields and select an assignment group Once the assignment_group.name field is populated, delete the contents. Submit the incident record Navigate to the corresponding sys_user_group record Note that the name is now empty.

Workaround Remove the dot-walked field or, if it is really necessary, make it mandatory & read-only.