Was rushing to patch a badly-phrased problem. I don't recall the exact sequence of steps I took. And I haven't been able to do it again.
Was really surprised to discover I did it once.
Any idea how?
This can be possible, depending on the permissions on the OPL directory.
If the OPL directory is writeable by the web server, then any instructor will have the ability to modify OPL problems.
Most often, the OPL directory is made read-only from the web server in order to prevent it from diverging from the main OPL repository, allowing easy updates via git. If the local version has been edited, one needs to intervene before git will update from the central repository (on github).
Danny
Thanks. That's pretty much what I was thinking. But since I haven't been able to do this again, now I'm wondering why one problem or collection of problems would have different ownership/permissions than the rest of our OPL.
Will need to contact our IT folks, who control our server now.