Deleting remote branch pointed by remote HEAD

Hi

I deleted a remote branch which was pointed by HEAD, this way: "git push origin :master"

Then for almost every git command, I get this error: "error: refs/remotes/origin/HEAD points nowhere!".

I found this situation non-friendly. Fortunately, I could understand what's going on. But a new user might be confused.

Shouldn't the remote HEAD branch be updated or "protected" in some ways? Or should the "error" be considered as a "warning" (silently?)

What do you think?

regards,