$ git clone -n https://src.fedoraproject.org/rpms/libjaylink.git /var/lib/mock/f41-build-side-1-2644858-27043/root/chroot_tmpdir/scmroot/libjaylink
Cloning into '/var/lib/mock/f41-build-side-1-2644858-27043/root/chroot_tmpdir/scmroot/libjaylink'...
$ git fetch origin 3bce025b57e44e9bb24b1469ee42c49f9ba85312:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libjaylink
 * [new ref]         3bce025b57e44e9bb24b1469ee42c49f9ba85312 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3bce025 convert GPLv2+ license to SPDX