Issue #274: Regression: pullrequest GUI is broken after commits to PR head (conservancy/kallithea)

[Konstantin Veretennicov]

New issue 274: Regression: pullrequest GUI is broken after commits to PR head
https://bitbucket.org/conservancy/kallithea/issues/274/regression-pullrequest-gui-is-broken-after

Konstantin Veretennicov:

Steps to reproduce:

1. Clean install Kallithea (on Windows, from sources, revision a1f8bf0)
2. Create 2 users
3. Create a repo with some commits
4. Fork the repo and push a changeset to the fork
5. Create a fork->master PR, containing one changeset; PR looks good for all users
6. Push one more changeset to the fork  
7. Refresh PR for both users

Expected: "Next iteration" to show the new changeset, bottom comment box with colored balls to work as always - for all users.

Actual: nobody, except PR creator (or owner?), has the bottom comment box.

There is a JS error in browser console, see attachment.