[geary] Don't return flags Set if none in database: Bug #713907

[Jim Nelson <jnelson src gnome org>]

commit b5a4feb20761791ee5de8cac1582a09a956b62a2
Author: Jim Nelson <jim yorba org>
Date:   Fri Oct 24 12:45:38 2014 -0700

    Don't return flags Set if none in database: Bug #713907

 src/engine/imap-db/imap-db-folder.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/engine/imap-db/imap-db-folder.vala b/src/engine/imap-db/imap-db-folder.vala
index 2c08afc..07f2aaf 100644
--- a/src/engine/imap-db/imap-db-folder.vala
+++ b/src/engine/imap-db/imap-db-folder.vala
@@ -1546,7 +1546,7 @@ private class Geary.ImapDB.Folder : BaseObject, Geary.ReferenceSemantics {
             fetch_stmt.bind_rowid(0, location.message_id);
             
             Db.Result results = fetch_stmt.exec(cancellable);
-            if (results.finished)
+            if (results.finished || results.is_null_at(0))
                 continue;
             
             map.set(location.email_id,