$ git clone -n https://src.fedoraproject.org/rpms/openssh.git /var/lib/mock/f41-build-838569-159711/root/chroot_tmpdir/scmroot/openssh
Cloning into '/var/lib/mock/f41-build-838569-159711/root/chroot_tmpdir/scmroot/openssh'...
$ git fetch origin 28a28238b30bc27766ea431dd93f5419b2d4a9c9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/openssh
 * [new ref]         28a28238b30bc27766ea431dd93f5419b2d4a9c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 28a2823 Sshd now proposes to enter password again when a non-existing user is specified