Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1783995

Description of problem:
[User] - Ldap User not able to get deleted if it is assigned to multiple user groups and generated the 500 Internal Server Error

Version-Release number of selected component (if applicable):
Satellite 6.7, 6.6

How reproducible:
Always

Steps to Reproduce:
1.Join the Ldap Authentication (Free IPA)
2.Create Multiple User Groups (test_group_1, test_group_2)
3. Create an IDM user and Logged into Satellite with that user.
4. Now assign that user to multiple groups.
5. try to delete that User from Satellite

Actual results:
User is not able to get deleted and getting a 500 internal server error

Expected results:
User should be able to get deleted

Additional info:
It exists in Satellite 6.6