$ git clone -n https://src.fedoraproject.org/rpms/snapd.git /var/lib/mock/f42-build-867070-174622/root/chroot_tmpdir/scmroot/snapd
Cloning into '/var/lib/mock/f42-build-867070-174622/root/chroot_tmpdir/scmroot/snapd'...
$ git fetch origin 397e94b9bad230d87ee7eba20212abb1fa9033f5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/snapd
 * [new ref]         397e94b9bad230d87ee7eba20212abb1fa9033f5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 397e94b Re-cherry pick fix for SELinux timedatex problem