Blacklist is not reset correctly for UserAttribute

Description

When editing the members of a group, a blacklist is set in the session to avoid showing objects which are already members in the selection dialog. But after finishing editing members, if you edit the group owner the blacklist still applies.

Steps to Reproduce

1. Edit ogroup members
2. Edit ogroup owner
3. Search for a member in the owner selection dialog

Expected behavior:

The member should show up.

Actual behavior:

It is hidden.

Additional Information

Spotted by https://jenkins.fusiondirectory.org/view/Selenium-Test/job/Selenium-Tests-Generic/plugin=systems,vminfos=dev-jessie/720/testReport/(root)/ForeignKeysTest/testMoveDepartmentWithForeignKeys/

created branch 5816-blacklist-is-not-reset-correctly-for-userattribute

By Côme Chilliet on 2018-04-16T11:30:44 (imported from GitLab)

mentioned in merge request !233

By Côme Chilliet on 2018-04-16T11:30:45 (imported from GitLab)

mentioned in commit 73eca226

By Côme Chilliet on 2018-04-16T11:31:47 (imported from GitLab)

closed

By Côme Chilliet on 2018-04-16T14:45:06 (imported from GitLab)

added 1h of time spent at 2018-04-16

By Côme Chilliet on 2018-04-16T14:45:07 (imported from GitLab)

added Fixed and removed Bugs labels

By Côme Chilliet on 2018-04-16T14:45:07 (imported from GitLab)

added fixes label

By Côme Chilliet on 2018-07-19T13:32:45 (imported from GitLab)

mentioned in merge request !342

By Côme Chilliet on 2018-07-19T13:33:08 (imported from GitLab)

added 10m of time spent at 2018-07-19

By Côme Chilliet on 2018-07-19T13:52:54 (imported from GitLab)

added fixes-merged and removed fixes labels

By Côme Chilliet on 2018-07-19T13:52:54 (imported from GitLab)

changed milestone to %FusionDirectory 1.2.2

By Côme Chilliet on 2018-07-19T13:52:54 (imported from GitLab)