richedit: EN_UPDATE notification is sent on WM_PAINT.

dlls/riched20/editor.c

@@ -4421,6 +4421,8 @@ static LRESULT RichEditWndProc_common(HWND hWnd, UINT msg, WPARAM wParam,
       PAINTSTRUCT ps;
 
       hDC = BeginPaint(editor->hWnd, &ps);
+      if (!editor->bEmulateVersion10 || (editor->nEventMask & ENM_UPDATE))
+        ME_SendOldNotify(editor, EN_UPDATE);
       /* Erase area outside of the formatting rectangle */
       if (ps.rcPaint.top < editor->rcFormat.top)
       {

dlls/riched20/paint.c

@@ -129,8 +129,6 @@ void ME_Repaint(ME_TextEditor *editor)
     ME_UpdateScrollBar(editor);
     FIXME("ME_Repaint had to call ME_WrapMarkedParagraphs\n");
   }
-  if (!editor->bEmulateVersion10 || (editor->nEventMask & ENM_UPDATE))
-    ME_SendOldNotify(editor, EN_UPDATE);
   ITextHost_TxViewChange(editor->texthost, TRUE);
 }