$ git clone -n https://src.fedoraproject.org/rpms/perl-HTTP-Tiny.git /var/lib/mock/f45-build-24037-601/root/chroot_tmpdir/scmroot/perl-HTTP-Tiny
Cloning into '/var/lib/mock/f45-build-24037-601/root/chroot_tmpdir/scmroot/perl-HTTP-Tiny'...
$ git fetch origin bafabdcb88de356c64b42a2b89219e810f65af3f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-HTTP-Tiny
 * [new ref]         bafabdcb88de356c64b42a2b89219e810f65af3f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bafabdc Perl 5.44 re-rebuild of bootstrapped packages