$ git clone -n https://src.fedoraproject.org/rpms/evolution-ews.git /var/lib/mock/f41-build-841999-161429/root/chroot_tmpdir/scmroot/evolution-ews
Cloning into '/var/lib/mock/f41-build-841999-161429/root/chroot_tmpdir/scmroot/evolution-ews'...
$ git fetch origin 97dcea98b88cd42feb5c0a3e7be35229ff38ac17:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/evolution-ews
 * [new ref]         97dcea98b88cd42feb5c0a3e7be35229ff38ac17 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 97dcea9 Package a new libevolution-ews-common.so