In a FileList there are some operations (such as 'install into new change set' and 'fileIn entire file', both on a .st file) that can be invoked from the file list, but on the contents pane lead to a walkback.
The problem arises from the setup of the contents-pane menu in FileList>>fileContentsMenu:shifted:, where menu items are connected to ServiceEntry instances that have an invalid 'served' object.
The relevant bit of the old code is
aMenu addServices: services for: self fullName extraLines: extraLines
which looks like it should be
aMenu addServices: services for: self extraLines: extraLines
...because the served object (the fileList) will be asked its fullName when the service is invoked.
Aran Lunzer Viewpoints Research Institute