cf9cf50286
A key made by mistake on a server that is being restored left no way back: key:import and the passphrase route refused because a key existed, and nothing removed it. As long as the key never protected anything (no location created or adopted with it, no location or run in the database), occ backup:key:import --replace-unused-key and occ backup:target:add --replace-unused-key replace it, after the new key was opened. A key that was used is never replaced, also after its location was removed. The refusal names the option, and all administrators are notified of a replacement.