OSPF type 5 LSA forward address change non zero to zero vice versa

Hi Ondrej, If OSPF topology changes as part of interface addition/deletion to ospf area on router, that causes the forward address of type 5 lsa change to nonzero to zero or vice versa, Router should generate updated type 5 LSAs right with the updated forward address. Bird software seems not generating updated LSA's in this case. Regards, Bala.