$ git clone -n https://src.fedoraproject.org/rpms/gforth.git /var/lib/mock/f45-build-9805-409/root/chroot_tmpdir/scmroot/gforth
Cloning into '/var/lib/mock/f45-build-9805-409/root/chroot_tmpdir/scmroot/gforth'...
$ git fetch origin 2bd8bd5e13da2cf3d027e49a1db08f90191d29bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gforth
 * [new ref]         2bd8bd5e13da2cf3d027e49a1db08f90191d29bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2bd8bd5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild