The jfile program does not have a capability to sync with the current copy of the file - which can be affected by outside events. In my text editor this option is called revert. Nor is there a mechanism to exit from editing a file keeping the same place in the file tree. (One can get a new jfile instance, but this starts from the users temp directory ... always.) The editor for a file seems the same as jijs - on any file, only the URL differs.
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