Conditional select options not updating

Select options not updating in conditionals UI

The select options are not opdating if you change to another select field in de conditional UI of a webform.

Steps to reproduce:

1. Add webform
2. add 2 select option fields, both with different, random options
3. go to Conditionals tab, add condition
4. Select first option-field as condition, correct options are shown in dropdown next to it
5. Select second option-field, now de options don't change accordingly, the options of the first field remain

To add to this: if you add a third field from another type and change to that in the conditional UI and THEN change to select2, the correct options are shown. Only, if you select another option then the first one, this is never saved. The condition is always saved with the first option selected.

Tested with both 4.7 and 4.dev in a clean environment.