Do not show "Continue" while on Save format warning

It makes no sense, only on Save As makes sense

part.cpp

@@ -2516,27 +2516,49 @@ bool Part::saveAs( const QUrl & saveUrl, SaveAsFlags flags )
         if ( wontSaveAnnotations ) listOfwontSaves << i18n( "User annotations" );
         if ( !listOfwontSaves.isEmpty() )
         {
-            const QString warningMessage = m_document->canSwapBackingFile() ?
-                        i18n( "You are about to save changes, but the current file format does not support saving the following elements. Please use the <i>Okular document archive</i> format to preserve them. Click <i>Continue</i> to save the document and discard these elements." ) :
-                        i18n( "You are about to save changes, but the current file format does not support saving the following elements. Please use the <i>Okular document archive</i> format to preserve them. Click <i>Continue</i> to save, but you will lose these elements as well as the undo/redo history." );
-            const QString continueMessage = m_document->canSwapBackingFile() ?
-                        i18n( "Continue" ) :
-                        i18n( "Continue losing changes" );
-            const int result = KMessageBox::warningYesNoCancelList( widget(),
-                  warningMessage,
-                  listOfwontSaves, i18n( "Warning" ),
-                  KGuiItem( i18n( "Save as Okular document archive..." ), "document-save-as" ), // <- KMessageBox::Yes
-                  KGuiItem( continueMessage, "arrow-right" ) ); // <- KMessageBox::NO
-
-            switch (result)
+            if ( saveUrl == url()  )
             {
-                case KMessageBox::Yes: // -> Save as Okular document archive
-                    return slotSaveFileAs( true /* showOkularArchiveAsDefaultFormat */ );
-                case KMessageBox::No: // -> Continue
-                    setModifiedAfterSave = m_document->canSwapBackingFile();
-                    break;
-                case KMessageBox::Cancel:
-                    return false;
+                // Save
+                const QString warningMessage = i18n( "You are about to save changes, but the current file format does not support saving the following elements. Please use the <i>Okular document archive</i> format to preserve them." );
+                const int result = KMessageBox::warningYesNoList( widget(),
+                    warningMessage,
+                    listOfwontSaves, i18n( "Warning" ),
+                    KGuiItem( i18n( "Save as Okular document archive..." ), "document-save-as" ), // <- KMessageBox::Yes
+                    KStandardGuiItem::cancel() );
+
+                switch (result)
+                {
+                    case KMessageBox::Yes: // -> Save as Okular document archive
+                        return slotSaveFileAs( true /* showOkularArchiveAsDefaultFormat */ );
+                    default:
+                        return false;
+                }
+            }
+            else
+            {
+                // Save as
+                const QString warningMessage = m_document->canSwapBackingFile() ?
+                            i18n( "You are about to save changes, but the current file format does not support saving the following elements. Please use the <i>Okular document archive</i> format to preserve them. Click <i>Continue</i> to save the document and discard these elements." ) :
+                            i18n( "You are about to save changes, but the current file format does not support saving the following elements. Please use the <i>Okular document archive</i> format to preserve them. Click <i>Continue</i> to save, but you will lose these elements as well as the undo/redo history." );
+                const QString continueMessage = m_document->canSwapBackingFile() ?
+                            i18n( "Continue" ) :
+                            i18n( "Continue losing changes" );
+                const int result = KMessageBox::warningYesNoCancelList( widget(),
+                    warningMessage,
+                    listOfwontSaves, i18n( "Warning" ),
+                    KGuiItem( i18n( "Save as Okular document archive..." ), "document-save-as" ), // <- KMessageBox::Yes
+                    KGuiItem( continueMessage, "arrow-right" ) ); // <- KMessageBox::NO
+
+                switch (result)
+                {
+                    case KMessageBox::Yes: // -> Save as Okular document archive
+                        return slotSaveFileAs( true /* showOkularArchiveAsDefaultFormat */ );
+                    case KMessageBox::No: // -> Continue
+                        setModifiedAfterSave = m_document->canSwapBackingFile();
+                        break;
+                    case KMessageBox::Cancel:
+                        return false;
+                }
             }
         }