_is_host_fib_route() should not return True if route not in the FIB. Don't proactively learn if already trying.
_is_host_fib_route() should not return True if route not in the FIB.
Don't proactively learn if already trying.

anarkiwi/faucet,shivarammysore/faucet,wackerly/faucet,anarkiwi/faucet,byllyfish/faucet,trentindav/faucet,Bairdo/faucet,mwutzke/faucet,gizmoguy/faucet,trentindav/faucet,REANNZ/faucet,byllyfish/faucet,REANNZ/faucet,trungdtbk/faucet,Bairdo/faucet,faucetsdn/faucet,trungdtbk/faucet,shivarammysore/faucet,wackerly/faucet,gizmoguy/faucet,faucetsdn/faucet,mwutzke/faucet