$ git clone -n https://src.fedoraproject.org/rpms/libchardet.git /var/lib/mock/f41-build-side-1-2647581-27306/root/chroot_tmpdir/scmroot/libchardet
Cloning into '/var/lib/mock/f41-build-side-1-2647581-27306/root/chroot_tmpdir/scmroot/libchardet'...
$ git fetch origin 49ddc156304ef67fe8b53d5c8edaa1b3edb87a06:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libchardet
 * [new ref]         49ddc156304ef67fe8b53d5c8edaa1b3edb87a06 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 49ddc15 convert license to SPDX