Is there a way to enforce on transition that a custom text field must contain a value, unless a radiobutton has a certain option selected?
The idea with the radiobutton is to provide an easy way to filter out issues where the text field is irrelevant. One could argue that an empty field could mean that the issue should be excluded by the filter, but that would make it impossible to determine if the field is left blank intentionally or by accident.
Edit: changed the field type from checkbox to radiobutton.