Process parameters before adding mandatory elements
This is to ensure enum values are present in the serialised form (e.g. xml)
Formatting
Revert "Process parameters before adding mandatory elements"

This reverts commit b6e6405670354ffada2c96a96aa45e9c917274d4.
Fixes checkbox not set correctly in edit mode for user
Fixes: https://github.com/slipstream/SlipStreamUI/issues/134