$ git clone -n https://src.fedoraproject.org/rpms/python-grabserial.git /var/lib/mock/f40-build-2026686-47255/root/chroot_tmpdir/scmroot/python-grabserial
Cloning into '/var/lib/mock/f40-build-2026686-47255/root/chroot_tmpdir/scmroot/python-grabserial'...
$ git fetch origin 59372f08b231401351cd7f58e2b8ac36c62c694c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-grabserial
 * [new ref]         59372f08b231401351cd7f58e2b8ac36c62c694c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 59372f0 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild