Description of problem:
When you create a drop down element in Service Dialog, then the field Default value will break a bit and start displaying the "ordinary" select along the styled one. (the ordinary select is normally hidden and operated by the styled select). The same issue happens when you then try to order the catalog item in the order dialog, when you change the value

Version-Release number of selected component (if applicable):
5.5.0.7

How reproducible:
always

Steps to Reproduce:
1a. Create a Service dialog with a drop down element. Give it a few values and then try selecting the default value
1b. Once the dialog is created, create a service using the dialog and try to order. You don't actually have to order it, just change a different value in the drop down

Actual results:
An ordinary select appears along the styled selectpicker

Expected results:
No ordinary select appears along the styled selectpicker.

Additional info: