While trying to manage the deployment keys of a repo in our team namespace, my co-worker could'nt edit the deployment key, since the edit option was not present. Although we both have Administrator access, i could see an 'Edit' link and he didn't. We found out, that this was caused by the different languages that we used.
English -> Edit available
German -> Edit not available
What bugs me, is that not even a fallback to the english word was made. Instead the edit option was simply not there.