libnss-sss postinst script puts "automounter: sss" in nsswitch.conf; should be "automount: sss"

In package libnss-sss_2.2.3-2 (Ubuntu 20.04 focal beta), the postinst script does:

insert_nss_entry() {
    log "Checking NSS setup..."
    # abort if /etc/nsswitch.conf does not exist
    if ! [ -e /etc/nsswitch.conf ]; then
        log "Could not find /etc/nsswitch.conf."
        return
    fi
    # append 'sss' to the end of the line if it's not found already
    sed -i --regexp-extended '
      /^(passwd|group|shadow|netgroup|services|automounter):/ {
        /\bsss\b/! s/$/ sss/
      }
    ' /etc/nsswitch.conf
    # and add a new entry for automount if it's not there
    if ! grep -q automounter /etc/nsswitch.conf; then
        log "Adding an entry for automounter."
        echo "automounter: sss" >> /etc/nsswitch.conf
    fi
}

However, according to https://docs.pagure.org/SSSD.sssd/design_pages/autofs_integration.html the entry should be "automount: sss". As a result, autofs reads an empty automount map.