Supporting both verb + action based dispatch in the same controller is a common scenario for web api, and we should make it simple.
One option is to add an [Action] attribute to indicate one method is for action dispatch only so that we don't run into the "ambiguous methods found" error for non action request.
One option is to add an [Action] attribute to indicate one method is for action dispatch only so that we don't run into the "ambiguous methods found" error for non action request.