You can clone with
HTTPS or Subversion.
Attachment: First step, click one the simple table icon
Attachment: The other table icon disappears
Thanks for the report. I see the bug, the URL is: https://demo.piwik.org/index.php?module=Goals&action=getVisitsUntilConversion&date=2013-04-07&period=month&idSite=1&viewDataTable=tableGoals&documentationForGoalsPage=1&idGoal=0&widget=1
without the &viewDataTable=tableGoals it seems to work maybe this is the problem. Not sure when it was introduced...
In 1d0410c: Fixes #3882
In a79ba42: Committed too early refs #3882