[smuxi] Engine: fall back to volatile message buffer in case of errors with SQLite

[Mirco M. M. Bauer <mmmbauer src gnome org>]

commit 8c7eed19845f50e2be56365e272f624cdc57dc4b
Author: Mirco Bauer <meebey meebey net>
Date:   Wed Sep 3 19:32:38 2014 +0200

    Engine: fall back to volatile message buffer in case of errors with SQLite

 src/Engine/Session.cs |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/Engine/Session.cs b/src/Engine/Session.cs
index fa353ab..1ec86b9 100644
--- a/src/Engine/Session.cs
+++ b/src/Engine/Session.cs
@@ -1298,7 +1298,8 @@ namespace Smuxi.Engine
                         "chat.MessageBuffer.Add() threw exception!", ex
                     );
 #endif
-                    if (chat.MessageBuffer is Db4oMessageBuffer) {
+                    if (chat.MessageBuffer is Db4oMessageBuffer ||
+                        chat.MessageBuffer is SqliteMessageBuffer) {
 #if LOG4NET
                         f_Logger.Error(
                             "AddMessageToChat(): " +