Deploy an environment 'foo', then go the Environments->foo->Deployment
History->Show Details. Horizon throws the error 'ValueError: Need 2
values to unpack in for loop; got 1.' Same fix that was provided for bug
1703197 applies here.
Change-Id: I09bac0f2d5197482cf8bc034099a2afeb5db82c2
Closes-Bug: #1724571