Redmine

Expected Result	Actual Result

As shown in the "Actual Result" above, even if "all" is selected in roles, pressing the Edit button will display "multiple selectbox with all options selected" instead of "all".

After all, there is no problem because all roles can be selected.
However, it is unnatural for the contents of the select box to change.

This problem occurs because find_roles in workflows_controller.rb was not fixed at the same time as change #15988.