$ git clone -n https://src.fedoraproject.org/rpms/perl-Crypt-ScryptKDF.git /var/lib/mock/f45-build-22656-593/root/chroot_tmpdir/scmroot/perl-Crypt-ScryptKDF
Cloning into '/var/lib/mock/f45-build-22656-593/root/chroot_tmpdir/scmroot/perl-Crypt-ScryptKDF'...
$ git fetch origin 05d1ceaeceefa264c745f9e1b6e923f211d0d948:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Crypt-ScryptKDF
 * [new ref]         05d1ceaeceefa264c745f9e1b6e923f211d0d948 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 05d1cea Perl 5.44 rebuild