$ git clone -n https://src.fedoraproject.org/rpms/perl-Digest-SHA3.git /var/lib/mock/f45-build-23138-596/root/chroot_tmpdir/scmroot/perl-Digest-SHA3
Cloning into '/var/lib/mock/f45-build-23138-596/root/chroot_tmpdir/scmroot/perl-Digest-SHA3'...
$ git fetch origin 87cf9fae12139e5cbc28ca5bbc859e5ba71110ef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Digest-SHA3
 * [new ref]         87cf9fae12139e5cbc28ca5bbc859e5ba71110ef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 87cf9fa Perl 5.44 rebuild