Fix Berlios Bug #11797, imap_mark_seen doesn't consider expunged messages

(and marks the wrong messages seen after expunges, leading to data loss in
'keep flush' configurations). Report and patch by Alexander Cherepanov. Thanks\!

svn path=/branches/BRANCH_6-3/; revision=5147

1 files changed, 4 insertions, 0 deletions

diff --git a/imap.c b/imap.c
index 053b607c..ec097eb5 100644
--- a/imap.c
+++ b/imap.c
@@ -1240,6 +1240,10 @@ static int imap_mark_seen(int sock, struct query *ctl, int number)
 /* mark the given message as seen */
 {
     (void)ctl;
+
+    /* expunges change the message numbers */
+    number -= expunged;
+
     return(gen_transact(sock,
 	imap_version == IMAP4
 	? "STORE %d +FLAGS.SILENT (\\Seen)"