Gerrit: Onlt set port flag if SSH parameter chaned

Change-Id: Ib006e31fdb5d832f67a19fa115a80c871628ccc6
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>

src/plugins/git/gerrit/gerritoptionspage.cpp

@@ -72,8 +72,10 @@ void GerritOptionsPage::apply()
     if (GerritOptionsWidget *w = m_widget.data()) {
         const GerritParameters newParameters = w->parameters();
         if (newParameters != *m_parameters) {
+            bool sshChanged = m_parameters->ssh != newParameters.ssh;
             *m_parameters = newParameters;
-            m_parameters->setPortFlagBySshType();
+            if (sshChanged)
+                m_parameters->setPortFlagBySshType();
             m_parameters->toSettings(Core::ICore::instance()->settings());
         }
     }