$ git clone -n https://src.fedoraproject.org/rpms/evolution-data-server.git /var/lib/mock/f38-build-side-42-init-devel-664531-26644/root/chroot_tmpdir/scmroot/evolution-data-server
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-664531-26644/root/chroot_tmpdir/scmroot/evolution-data-server'...
$ git fetch origin f8a8c4f0554045415d623d7bfc64979de5018ff6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/evolution-data-server
 * [new ref]         f8a8c4f0554045415d623d7bfc64979de5018ff6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f8a8c4f Update to 3.48.0