$ git clone -n https://src.fedoraproject.org/rpms/dmg2img.git /var/lib/mock/f40-build-1994585-43812/root/chroot_tmpdir/scmroot/dmg2img
Cloning into '/var/lib/mock/f40-build-1994585-43812/root/chroot_tmpdir/scmroot/dmg2img'...
$ git fetch origin 4c2d59b04a2d4f3fadd008d73f3d735b7b199d7d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dmg2img
 * [new ref]         4c2d59b04a2d4f3fadd008d73f3d735b7b199d7d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4c2d59b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild