Hi Katherine,
The bug you mention, 000086159 is marked as fixed. Robert Scheitlin is correct about the capability being part of Web AppBuilder Developer Edition v1.3.
Also, this thread contains a list of issues fixed for Web AppBuilder Developer Edition v1.2. The doc for v1.3 is available here,
Web AppBuilder for ArcGIS Developer Edition v1.3 enhancements
If you're having a technical issue, can you please contact Esri Technical Support so we can investigate further?
Hope this helps,