https://inside.mysql.com/wiki/MySQL's_Code_Reviews_Published_Externally


BitKeeper/triggers/post-commit:
  1) Add additional method of detecting merge changesets.
  2) Remove code sending e-mail to dev-public@ or dev-bugs@.
  3) Change code sending e-mail to commits@ to send to dev-private@ if a specific file is present in the BK root directory, denoting this tree as private.