LIM: Delete experimenter group or Experimenter

[jburel]

Follow exception when trying to delete an experimenter group or an experimenter using the admin service.

omero.ValidationException
    serverStackTrace = "ome.conditions.ValidationException: could not delete: [ome.model.meta.ExperimenterGroup#503]; SQL [delete from experimentergroup where id=?]; constraint [fkannotation_group_id_experimentergroup]; nested exception is org.hibernate.exception.ConstraintViolationException: could not delete: [ome.model.meta.ExperimenterGroup#503]
                        	at org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:637)
                        	at org.springframework.orm.hibernate3.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:412)
                        	at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:411)
                        	at org.springframework.orm.hibernate3.HibernateTemplate.execute(HibernateTemplate.java:339)

Collected references:

• ​https://trello.com/c/mAelGwh3/21-deleting-users
• ​https://trello.com/c/mrig1gab/21-group-user-delete
• ​https://www.openmicroscopy.org/community/viewtopic.php?t=8717&p=20933#p20933

[jburel]

this error only happens when the group and experimenter were created via test.

[jmoore]

For 4.2.1, all delete user/group functionality should be disabled. This will have to be addressed as a part of #547 in a later phase.

[jburel]

This will probably be part of Delete phase II

[jmoore]

Renaming to limitation since this is showing up in the bug report.

[jburel]

Referencing ticket #547 has changed sprint.