$ git clone -n https://src.fedoraproject.org/rpms/perl-Crypt-OpenSSL-Random.git /var/lib/mock/f41-build-816997-150570/root/chroot_tmpdir/scmroot/perl-Crypt-OpenSSL-Random
Cloning into '/var/lib/mock/f41-build-816997-150570/root/chroot_tmpdir/scmroot/perl-Crypt-OpenSSL-Random'...
$ git fetch origin 5eb6f4023e6733bfcd9c35967af8e948400dc2a8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Crypt-OpenSSL-Random
 * [new ref]         5eb6f4023e6733bfcd9c35967af8e948400dc2a8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5eb6f40 0.17 bump