Error when cd'ing into a new (empty) git directory

[i4ki]

λ> git clone <empty-repo>
λ> cd <repo>
fatal: ambiguous argument 'HEAD': unknown revision or path not in the working tree.
Use '--' to separate paths from revisions, like this:
'git <command> [<revision>...] -- [<file>...]'
ERROR: exit status 128|success