$ git clone -n https://src.fedoraproject.org/rpms/kea.git /var/lib/mock/f42-build-side-1-3588359-46945/root/chroot_tmpdir/scmroot/kea
Cloning into '/var/lib/mock/f42-build-side-1-3588359-46945/root/chroot_tmpdir/scmroot/kea'...
$ git fetch origin ce527d6709be3088fb4d9f2e0d29a40daaceb5be:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kea
 * [new ref]         ce527d6709be3088fb4d9f2e0d29a40daaceb5be -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ce527d6 New version 3.0.0 (rhbz#2374737)