--ignore-servers is not honored after failover took place once

[michaeldg]

Please be aware I am running a small hack, https://github.com/michaeldg/replication-manager/blob/master/misc.go:49, getSeqFromGtid always returns 1. This is to work around issue #30.

The first failover I executed worked perfectly, the comamnd I used was:
./go/bin/replication-manager --hosts=a-oltp01,a-oltp02,b-oltp01,b-oltp02 --user=replication_manager:root --rpluser=slave_user:repl --interactive --switchover=keep --readonly=false --ignore-servers=b-oltp01,b-oltp02 --gtidcheck=0

The first failover was (as expected) to a-oltp02. The second failover was, incorrectly, to b-oltp01.

[michaeldg]

I cannot reproduce this issue anymore on the 'gtidlist' branch.