### **Steps to reproduce:**

1. Have a long text CF
2. Mention a user or group in that CT

### **Actual Behavior**

Begin of the insertion* Mentioning is possible but noEnd of the insertion Begin of the deletion NoEnd of the deletion mention Begin of the insertionnotificationEnd of the insertion triggered

### **Expected Behavior**

Begin of the insertion~~Mention triggered~~

* Mentioning should not be possible in long custom fieldsEnd of the insertion Begin of the deletion Mention triggeredEnd of the deletion