Show it just when it's a imap folder

mailcommon/collectionpage/collectiongeneralpage.cpp

@@ -229,18 +229,18 @@ void CollectionGeneralPage::init( const Akonadi::Collection &collection )
             mContentsComboBox->setEnabled( false );
         }
 
-    }
+        // Kolab incidences-for annotation.
+        // Show incidences-for combobox if the contents type can be changed (new folder),
+        // or if it's set to calendar or task (existing folder)
+        const bool folderTypeComboboxEnabled = ( folderType == CollectionTypeUtil::ContentsTypeCalendar || folderType == CollectionTypeUtil::ContentsTypeTask );
+        ++row;
+        mIncidencesForComboBox = new ContentsTypeComboBox(this);
+        gl->addWidget(mIncidencesForComboBox, row, 0, 1, 1);
 
-    // Kolab incidences-for annotation.
-    // Show incidences-for combobox if the contents type can be changed (new folder),
-    // or if it's set to calendar or task (existing folder)
-    const bool folderTypeComboboxEnabled = ( folderType == CollectionTypeUtil::ContentsTypeCalendar || folderType == CollectionTypeUtil::ContentsTypeTask );
-    ++row;
-    mIncidencesForComboBox = new ContentsTypeComboBox(this);
-    gl->addWidget(mIncidencesForComboBox, row, 0, 1, 1);
+        mIncidencesForComboBox->setCurrentIndex( incidencesFor );
+        mIncidencesForComboBox->setEnabled(folderTypeComboboxEnabled);
+    }
 
-    mIncidencesForComboBox->setCurrentIndex( incidencesFor );
-    mIncidencesForComboBox->setEnabled(folderTypeComboboxEnabled);
 
     if ( PimCommon::Util::isImapResource(collection.resource()) ) {
         mSharedSeenFlagsCheckBox = new QCheckBox( this );