$ git clone -n https://src.fedoraproject.org/rpms/evolution-ews.git /var/lib/mock/f40-build-2529139-61828/root/chroot_tmpdir/scmroot/evolution-ews
Cloning into '/var/lib/mock/f40-build-2529139-61828/root/chroot_tmpdir/scmroot/evolution-ews'...
$ git fetch origin c4783aadea2f25b032aa83d9d39f45d5800c11f1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/evolution-ews
 * [new ref]         c4783aadea2f25b032aa83d9d39f45d5800c11f1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c4783aa Update to 3.51.3