$ git clone -n https://src.fedoraproject.org/rpms/evolution.git /var/lib/mock/f42-build-side-1-3533258-46361/root/chroot_tmpdir/scmroot/evolution
Cloning into '/var/lib/mock/f42-build-side-1-3533258-46361/root/chroot_tmpdir/scmroot/evolution'...
$ git fetch origin 6bf9b5d826d592a06afd3ec1db07c6861c60126b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/evolution
 * [new ref]         6bf9b5d826d592a06afd3ec1db07c6861c60126b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6bf9b5d Update to 3.56.2