[SSSD] [PATCH] Failover to next server if authentication fails

[Pavel Březina]

We can fail in sasl_bind_send() with ERR_AUTH_FAILED for basically 
unspecified reason but we do not failover to next server. This patch 
should fix it.

As said on the meeting, I didn't reproduce it and I'm not sure if it 
will fix the customer issue unless they confirm it, but it seems to be a 
valid patch anyway.