$ git clone -n https://src.fedoraproject.org/rpms/cjose.git /var/lib/mock/f40-build-2235019-53414/root/chroot_tmpdir/scmroot/cjose
Cloning into '/var/lib/mock/f40-build-2235019-53414/root/chroot_tmpdir/scmroot/cjose'...
$ git fetch origin 4c20d85e96199fcd80d1ecdccb3d4425d8721e3e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cjose
 * [new ref]         4c20d85e96199fcd80d1ecdccb3d4425d8721e3e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4c20d85 migrated to SPDX license