External user sees exception on first login.
Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1108048
Description of problem:
External user (tried ldap as well as httpd mod_lookup_identity) sees exception on his first login and needs to try to login again.
Steps to Reproduce:
1. Create LDAP auth source with populated users
2. try logging in as a user
cannot execute execution_plan_id:624b3558-9394-43d3-8b49-8fdb89c2fa5a it's stopped
User logs in on first attempt
Fixes #6166 - ensure we don't execute the same execution plan twice in a row