Merge r1750779 from trunk:

modssl: reset client-verify state when renegotiation is aborted
Submitted by: icing
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1750808 13f79535-47bb-0310-9956-ffa450edef68