Can't edit Program rights anymore

[tmortagne]

@erwanleroy

The problem is, it won’t save as undefined, nor as allowed anymore. I can set the value to whatever I want, but whenever I leave the page and come back, it’s back to Deny.

Yes, that’s because you don’t have programming right anymore, so you cannot set it (the UI should be improved to reflect that).

@erwanleroy

How can I go back?

You will need to enable superadmin user (by setting a password for it in xwiki.cfg).