$ git clone -n https://src.fedoraproject.org/rpms/perl-CSS-Minifier-XS.git /var/lib/mock/f45-build-22101-589/root/chroot_tmpdir/scmroot/perl-CSS-Minifier-XS
Cloning into '/var/lib/mock/f45-build-22101-589/root/chroot_tmpdir/scmroot/perl-CSS-Minifier-XS'...
$ git fetch origin 89178f7b03359ed3c12d7a7c869c11a623e0b1c0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-CSS-Minifier-XS
 * [new ref]         89178f7b03359ed3c12d7a7c869c11a623e0b1c0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 89178f7 Perl 5.44 rebuild