Description of problem:
When trying to update a host from (any edit operation), in the Edit dialog, after pressing OK the following happens:
Host Groups and Compute Resources now have too-long underlines, the (empty) combo-boxes become red.
Can't continue with update, there's no tooltip when hovering over the combo-box or the underline.

Version-Release number of selected component (if applicable):
stable branch, commit - 6d8fdd9231be4788898b30059d2a0e8c90593bc2

How reproducible:
100%

Steps to Reproduce:
1. Edit a host
2. Press OK


Actual results:
As described above.

Expected results:
Update successfully.
If there is indeed an issue have a normal underline, tooltip, and some opstions in the combo-boxes.