SSH SendEnv and command=“script” overwrites EnvVariable

I've got the following problem: I try to push/set a EnvVariable via

ssh -o SendEnv=APITOKEN host

on the remote host is the following setup:

this line in /etc/ssh/sshd_config:

AcceptEnv LANG LC_* XMODIFIERS APITOKEN

in the authorized_keys we got the following:

command="bin/login XXX"

The Script login looks like:

#!/usr/bin/env bash
## Auto-Root Wrapper script

if [ -n "$1" ]; then
  export REMOTE_USER=$1
fi
if [ -n "${SSH_ORIGINAL_COMMAND}" ]; then
  # if there is an ssh command set, we check for known
  # workarounds and then execute the command
  case "${SSH_ORIGINAL_COMMAND}" in
  scp\ *|rsync\ --server*|*/sftp-server)
  logger -p auth.info -t $(basename $0) "user: $REMOTE_USER     filetransfer: ${SSH_ORIGINAL_COMMAND}"
  exec sudo /bin/sh -c "cd /root/;exec ${SSH_ORIGINAL_COMMAND}"
  ;;

  *)
      logger -p auth.info -t $(basename $0) "user: $REMOTE_USER shell    command: ${SSH_ORIGINAL_COMMAND}"
      sudo bash -s <<<${SSH_ORIGINAL_COMMAND}
      ;;

  esac
else
  # if there is no command, we will just return a login shell
  logger -p auth.info -t $(basename $0) "user: $REMOTE_USER starting     interactive shell"
  if [ -e /etc/motd ]; then
    cat /etc/motd
  fi
  sudo -i bash
fi

When i got my shell, i test if $APITOKEN is set, but it's empty. I don't know why. ssh -vvv give following:

debug1: Sending env APITOKEN = test
debug2: channel 0: request env confirm 0
debug3: send packet: type 98

Someone know a hint?