Opening a Pull Request with a selected range of changesets doesn't work quite right in 1.5.1. Repro on demo.rhodecode.org:
1) Go to http://demo.rhodecode.org/natosha-repo1-fork/changelog
2) Select changesets 2 through 4
3) Click "Open new pull requests for selected changesets"
Actual Behavior: Only changeset 4 is added to the pull request.
Expected Behavior: Changesets 2 through 4 should be added to the pull request