Add non-nil check to old connection in error handler (#1305)
Add non-nil check to old connection in error handler (#1305)

Signed-off-by: Alex Lourie <a57b0d91bbf35e819279c7b064d3b42366f1b9ba@gmail.com>
gocql/gocql,mailgun/gocql,Zariel/gocql,vrischmann/gocql,mailgun/gocql,Zariel/gocql,gocql/gocql,vrischmann/gocql