$ git clone -n https://src.fedoraproject.org/rpms/evolution-ews.git /var/lib/mock/f41-build-side-1-2750160-31029/root/chroot_tmpdir/scmroot/evolution-ews
Cloning into '/var/lib/mock/f41-build-side-1-2750160-31029/root/chroot_tmpdir/scmroot/evolution-ews'...
$ git fetch origin 6d2711fbf764e10c6ae12f41305a9b2ef8597c5c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/evolution-ews
 * [new ref]         6d2711fbf764e10c6ae12f41305a9b2ef8597c5c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d2711f Update to 3.54.0