$ git clone -n https://src.fedoraproject.org/rpms/kidentitymanagement.git /var/lib/mock/f40-build-1816421-24909/root/chroot_tmpdir/scmroot/kidentitymanagement
Cloning into '/var/lib/mock/f40-build-1816421-24909/root/chroot_tmpdir/scmroot/kidentitymanagement'...
$ git fetch origin c366eed648b8b37d26f9919df94cbf27af3c8599:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kidentitymanagement
 * [new ref]         c366eed648b8b37d26f9919df94cbf27af3c8599 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c366eed Merge branch 'rawhide' into f40