[geary: 7/66] Update local folder message count property during cleanup

[Michael Gratton <mjog src gnome org>]

commit 15561a1108afc9962672d9b7c1973da838d1ed37
Author: Chris Heywood <15127-creywood users noreply gitlab gnome org>
Date:   Wed Jan 8 11:33:48 2020 +0100

    Update local folder message count property during cleanup
    
    Likely WIP with other properties to be added

 src/engine/imap-db/imap-db-folder.vala | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/src/engine/imap-db/imap-db-folder.vala b/src/engine/imap-db/imap-db-folder.vala
index b6ff465c8..06ee87a7b 100644
--- a/src/engine/imap-db/imap-db-folder.vala
+++ b/src/engine/imap-db/imap-db-folder.vala
@@ -936,6 +936,9 @@ private class Geary.ImapDB.Folder : BaseObject, Geary.ReferenceSemantics {
 
                 stmt.exec(cancellable);
 
+                // Update local message count
+                this.properties.set_status_message_count(this.properties.email_total - deleted_ids.size, 
true);
+
                 return Db.TransactionOutcome.COMMIT;
             } else {
                 return Db.TransactionOutcome.DONE;