Solve merge conflicts on duplicate data

[fischerman]

When merging two contexts which reference the same user name (though different users) the resulting kubecfg drops one of those users and the corresponding context can not authenticate.

Suggestion: Detect duplicate user names (i.e. same name but different data) and rename them on import (e.g. to $context-$user).

[corneliusweig]

That's an interesting issue. As you know, this script is based on the canonical kubectl config view command. I'm surprised that this does not catch this corner case. Can you open a bug in the kubernetes repo about this? I think kubectl should catch this.