ospf stub interfaces appears as two entries in routing table (direct + ospf)

If I configure an OSPF interface as a stub interface, why does it appear twice the routing table? E.g. setting interface lo as stub interface results in the following; 10.210.137.78/32 unicast [direct1 15:59:09.550] * (255) dev lo unicast [ospfv2_1 20:47:56.864] I (145/0) [10.210.137.78] dev lo The source OSPF-I misleads me in thinking that it was learned from the OSPF area.