$ git clone -n https://src.fedoraproject.org/rpms/evolution-ews.git /var/lib/mock/f38-build-side-42-init-devel-656025-26595/root/chroot_tmpdir/scmroot/evolution-ews
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-656025-26595/root/chroot_tmpdir/scmroot/evolution-ews'...
$ git fetch origin 820916fc3d71070d63a00e7b67831fc1545b9b81:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/evolution-ews
 * [new ref]         820916fc3d71070d63a00e7b67831fc1545b9b81 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 820916f Update to 3.48.0