If a user creates a new "Host groups" and selects a group "Other Hosts | Group" from the drop down menu, the field "Group name" is erased and the user has to retype in the "Group name".

For example:
1.) Goto Configuration
2.) Goto Host Groups
3.) Create Group Button
4.) Type in Group Name Field: "This is a test"
5.) Select a group in the drop list "Other Hosts | Group".
6.) Verify Group Name Field is now blank.