$ git clone -n https://src.fedoraproject.org/rpms/knotes.git /var/lib/mock/f41-build-side-1-2647428-27302/root/chroot_tmpdir/scmroot/knotes
Cloning into '/var/lib/mock/f41-build-side-1-2647428-27302/root/chroot_tmpdir/scmroot/knotes'...
$ git fetch origin 2dbdec12270e911ade94b8f5f4b88a458c4881e5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/knotes
 * [new ref]         2dbdec12270e911ade94b8f5f4b88a458c4881e5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2dbdec1 convert license to SPDX