(ITS#3448) syncrepl provider keeps connections open

[hyc@OpenLDAP.org]

Full_Name: Howard Chu
Version: 2.2.19
OS: 
URL: ftp://ftp.openldap.org/incoming/
Submission from: (NULL) (194.209.131.192)
Submitted by: hyc


If a connection with a persistent search is terminated uncleanly (i.e., client
doesn't send Abandon or Unbind request) then the connection will never close
because the persistent search operation will never be removed from conn->c_ops.
This has been patched recently in HEAD.