$ git clone -n https://src.fedoraproject.org/rpms/rust-tokei.git /var/lib/mock/f40-build-2170529-51021/root/chroot_tmpdir/scmroot/rust-tokei
Cloning into '/var/lib/mock/f40-build-2170529-51021/root/chroot_tmpdir/scmroot/rust-tokei'...
$ git fetch origin 47cf4a0dec5505e9524e6fe2af10e55cec8c9300:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tokei
 * [new ref]         47cf4a0dec5505e9524e6fe2af10e55cec8c9300 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 47cf4a0 Convert license tag for binary subpackage to SPDX