I've looked at the changes in 1.2.5-8 and I don't see how they'll make rpcbind reply from port 111 like portmap used to. If I'm right, then this bug isn't fixed yet. I just happened across a change that looks more hopeful to me:
https://github.com/mendersoftware/poky/blob/master/meta/recipes-extended/rpcbind/rpcbind/rpcbind_add_option_to_fix_port_number.patch I haven't tried it but it looks like it might let me set the port used to 111.