Discontinue processing on cert mismatch
Discontinue processing on cert mismatch

If cert mismatched, the client was shut out, but processing continued,
fix this mistake.

xcat2/confluent,whowutwut/confluent,jjohnson42/confluent,jjohnson42/confluent,jjohnson42/confluent,whowutwut/confluent,jjohnson42/confluent,whowutwut/confluent,jjohnson42/confluent,xcat2/confluent,whowutwut/confluent,xcat2/confluent,xcat2/confluent,xcat2/confluent