$ git clone -n https://src.fedoraproject.org/rpms/perl-HTTP-Tinyish.git /var/lib/mock/f45-build-24039-601/root/chroot_tmpdir/scmroot/perl-HTTP-Tinyish
Cloning into '/var/lib/mock/f45-build-24039-601/root/chroot_tmpdir/scmroot/perl-HTTP-Tinyish'...
$ git fetch origin 5c00a0392db9de3930ca4f7949c20481f4c5ac45:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-HTTP-Tinyish
 * [new ref]         5c00a0392db9de3930ca4f7949c20481f4c5ac45 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5c00a03 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild