$ git clone -n https://src.fedoraproject.org/rpms/sox.git /var/lib/mock/f41-build-side-1-2670137-29000/root/chroot_tmpdir/scmroot/sox
Cloning into '/var/lib/mock/f41-build-side-1-2670137-29000/root/chroot_tmpdir/scmroot/sox'...
$ git fetch origin c919b471a3e19e4b162fbcb2bc9b09d7f53fdd69:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/sox
 * [new ref]         c919b471a3e19e4b162fbcb2bc9b09d7f53fdd69 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c919b47 convert license to SPDX