Steps to Reproduce:

1. Open up a Rapid Board in either Plan or Work mode (now just called Boards)
2. Click an issue to open up the right side JIRA panel.
3. Use the little cog menu and select "Edit"

Expected Results:

The edit dialog comes up without any errors

Actual Results:

The edit dialog comes up, but there is a little pink error message that overlaps it. Opening the error message gives the following:

An error occurred Hide...

Please try refreshing the page, or contact your administrator / Atlassian Support if the problem continues.
Details

Exception: TypeError: MYAA.Backward.Dialog.current.options.onContentRefreshDefault is undefined
Resource: http://vcdevtools.canada.eos.local/jira/s/en_USbxrhb0/784/3/6bb8ac4baba4abf35b0caace56c065e3/_/download/contextbatch/js/greenhopper-rapid-non-gadget,atl.general/batch.js
Line: 5087

Environment
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:15.0) Gecko/20100101 Firefox/15.0.1

Note: I realize that JIRA 5.1.5 is not supported yet, but thought that filing the issue would be helpful.