Fix PHP Warning about invalid argument supplied for foreach
If _POST['members'] or _POST['groups'] is not set / none selected at GUI, it would give a warning on crash reporter (dev versions)
(cherry picked from commit 9f4722022f0e8114741e8cf1a421520fded8be1f)
Fix PHP Warning about invalid argument supplied for foreach
If _POST['members'] or _POST['groups'] is not set / none selected at GUI, it would give a warning on crash reporter (dev versions)
(cherry picked from commit 9f4722022f0e8114741e8cf1a421520fded8be1f)