don't allow 0 (NONE) but do allow null
don't allow 0 (NONE) but do allow null

DBezemer/server,DBezemer/server,DBezemer/server,kaltura/server,DBezemer/server,DBezemer/server,kaltura/server,kaltura/server,kaltura/server,kaltura/server,DBezemer/server,DBezemer/server,DBezemer/server,kaltura/server