title: Do Mercurial bundle files support internal integrity checks?
body: <p>I am working on a project with developers around the globe and we are using mercurial for our source control solution. Currently, we communicate our change sets by creating bundles and posting to a mailing list. A disagreement has arisen about best practices, and we have not been able to find an answer in the mercurial documentation.</p>
  
  <p>When creating a bundle, is there any sort of internal integrity check that occurs? Or should we be sending digests along with the change set to ensure file integrity?</p>