When I click some reference in job.xml file, there is the "Refactor" item in the context menu. Refactoring item seems to be available JobXmlRefactoring_1.png, but when I hover the Refactoring item the blank menu appears and Refactoring item become unavailable/disabled JobXmlRefactoring_2.png.
Refactoring item should be unavailable immediately, or there should be at least one item in Refactoring menu (the Rename maybe?).