[openjdk bot] keep adding duplicated message in PR

[linzang(臧琳)]

Dear All,
  May I ask your help to tell is there anything I did wrong for
updating a PR at https://github.com/openjdk/jdk/pull/25 on git?
  The "openjdk bot" keep adding same comments in this PR like
following:
=============================================================
Hi @openjdk[bot], thanks for making a comment in an OpenJDK project!

All comments and discussions in the OpenJDK Community must be made
available under the OpenJDK Terms of Use. If you already are an OpenJDK
Author, Committer or Reviewer, please click here to open a new issue so
that we can record that fact. Please Use "Add GitHub user openjdk[bot]
for the summary.

If you are not an OpenJDK Author, Committer or Reviewer, simply check
the box below to accept the OpenJDK Terms of Use for your comments.

 I agree to the OpenJDK Terms of Use for all comments I make in a
project in the OpenJDK GitHub organization.
Your comment will be automatically restored once you have accepted the
OpenJDK Terms of Use.
=========================================================

what should I do to stop this?

Thanks for any kind of help.

BRs,
Lin