Fix Bug 279325 - access to kwallet is not closed after closing kmail

FIXED-IN: 4.10.2
BUG: 279325

resources/imap/imapresource.cpp

@@ -493,6 +493,7 @@ void ImapResource::doSetOnline(bool online)
     m_taskList.clear();
     delete m_idle;
     m_idle = 0;
+    Settings::self()->clearCachedPassword();
   } else if ( online && !m_pool->isConnected() ) {
     scheduleConnectionAttempt();
   }

resources/imap/settings.cpp

@@ -107,6 +107,11 @@ void Settings::setWinId( WId winId )
     m_winId = winId;
 }
 
+void Settings::clearCachedPassword()
+{
+    m_password.clear();
+}
+
 void Settings::requestPassword()
 {
   if ( !m_password.isEmpty() ||

resources/imap/settings.h

@@ -48,6 +48,8 @@ public:
     QString rootRemoteId() const;
     void renameRootCollection( const QString &newName );
 
+    void clearCachedPassword();
+
 signals:
     void passwordRequestCompleted( const QString &password, bool userRejected );