(ITS#5210) SyncRepl: upon unchanged DIT expected only delete phase for refreshAndPersist

[e.vanoosten@grons.nl]

Full_Name: Erik van Oosten
Version: 2.3.36
OS: cygwin
URL: 
Submission from: (NULL) (212.78.164.66)


When you start a refreshAndPersist sync operation with an initial cookie, and
the DIT has not changed since the cookie was issued, during the refresh phase I
expect to get a single message, namely a SyncInfoMessage of refreshDelete with
refreshDone equals to TRUE (no present phase, only the delete phase).
Observed behavior is that you get a single message, namely a SyncInfoMessage of
refreshPresent with refreshDone equals to TRUE (only the present phase, no
delete phase).

Note: a refreshOnly operation in the same circumstances works as expected.

Issue submitted as requested by Howard Chu.