Editing existing meeting activity replaces previous selected "with contacts" with author ("added by"). Saving creates a new activity. Found in Beta 6 only.

Installed the 2.1 Beta 6 Drupal tarball in a standalone installation over Beta 5. Logged in, opened an existing meeting activity and found that the contacts ("with contacts") previously included with the activity were replaced with the author's name ("added by"). Saving this previously created activity generates a new activity and leaves the old one in place.

Unable to recreate this error in the sandbox.