The simple topology. Basic OSPF configuration. And redistribution of 1 static route.
As result the external route will be advertised in LSA type 5.
If we configure R2 and R3 with command set protocols ospf area 1 area-type nssa it will not lead to change LSA type 5 to LSA type 7 on R3.
But if we save configuration and reboot R2 and R3 the command set protocols ospf area 1 area-type nssa converts to set protocols ospf area 1 area-type nssa translate 'candidate' on both routers despite this command should be applied only on ABR. After reboot LSA type 7 appears on R2 and R3, but on R3 external route also presented as LSA type 5 what shouldn't be.