BUG: missing `not`
BUG: missing `not`

villrv/MOSFiT,guillochon/MOSFiT,mnicholl/MOSFiT,mnicholl/MOSFiT,guillochon/FriendlyFit,bmockler/MOSFiT,bmockler/MOSFiT,villrv/MOSFiT,guillochon/MOSFiT,guillochon/MOSFiT,mnicholl/MOSFiT