$ git clone -n https://src.fedoraproject.org/rpms/chunkfs.git /var/lib/mock/f42-build-3273308-41310/root/chroot_tmpdir/scmroot/chunkfs
Cloning into '/var/lib/mock/f42-build-3273308-41310/root/chroot_tmpdir/scmroot/chunkfs'...
$ git fetch origin 2b095f4713daa0a552ed0f4cc3b4b3ed444486fa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/chunkfs
 * [new ref]         2b095f4713daa0a552ed0f4cc3b4b3ed444486fa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2b095f4 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild