Steps to reproduce:

• Create an item with one or more preprocessing steps.
• Open the newly created item and go to the Preprocessing tab.
• Change the type of one of the preprocessing steps.
• Try to revert the type back to its original value.

Result:
It’s not possible to revert the type because the original option is disabled.

Expected:
The preprocessing step type should remain enabled, and it should be possible to revert it to the previous value.