Ticket #48192 - Individual abandoned simple paged results request has no chance to be cleaned up
Description: When allocating a slot in simple paged results array stashed
in a connection in pagedresults_parse_control_value, a new code is added
to scan the array if the existing slot is timed out or not. If it is, the
slot is released and a search results is released if it is attached.
Also, if a request is abandoned, instead of returning a valid cookie, it
changed to return an empty cookie to inform the client the request was not
successfully completed.
https://fedorahosted.org/389/ticket/48192
Reviewed by rmeggins@redhat.com (Thank you, Rich!!)
(cherry picked from commit 9035617b50cec984a8ccfea5a0f37d4d0b11f9cd)