Invalidate orphaned events.
Invalidate orphaned events.

dilawar/ncbs-minion,dilawar/ncbs-hippo,dilawar/ncbs-minion,dilawar/ncbs-hippo,dilawar/ncbs-minion,dilawar/ncbs-hippo,dilawar/ncbs-minion,dilawar/ncbs-hippo,dilawar/ncbs-minion,dilawar/ncbs-hippo