After creating a PR from the GitHub pane, the view should switch to the PR list. Instead it remains on the "Create Pull Request" view.

This seems most likely to happen when pushing a new branch when making a PR

Thought that ⬆️ was the reason, but it actually happens any time you switch branches. I put some logging in place to try and find some common patterns while debugging. Noticed Start() in UIController is getting called twice. The call stack led to the RepoChanged method:
https://github.com/github/VisualStudio/blob/ca6aa0d52458d3339388b262578105963c3ce4e1/src/GitHub.VisualStudio/UI/Views/GitHubPaneViewModel.cs#L125-L126

Stays on PR Creation View

Start (54397957)
Firing Next from None (54397957)
Firing Next from None for flow PullRequestCreation (54397957)
Where::CredentialManager
   credential manager found at 'C:\Program Files\some\directory`
Start (55444801)
Firing Next from None (55444801)
Firing Next from None for flow PullRequestCreation (55444801)
VM: PR Creation Done at 1/31/2017 4:22:26 PM
VIEW: PR Creation Notified Done at 1/31/2017 4:22:26 PM
Firing Next from PRCreation (55444801)
Firing Next from PRCreation for flow PullRequestCreation (55444801)
Firing Next from End (55444801)
Firing Next from End for flow PullRequestCreation (55444801)
Disposing (55444801)
NAV: Controller Pop at 1/31/2017 4:22:26 PM
NAV: Controller reload at 1/31/2017 4:22:26 PM Busy?False
Firing Reload from PRCreation (54397957)

Goes to PR List View

Start (29498151)
Firing Next from None (29498151)
Firing Next from None for flow PullRequestCreation (29498151)
VM: PR Creation Done at 1/31/2017 4:20:36 PM
VIEW: PR Creation Notified Done at 1/31/2017 4:20:36 PM
Firing Next from PRCreation (29498151)
Firing Next from PRCreation for flow PullRequestCreation (29498151)
Firing Next from End (29498151)
Firing Next from End for flow PullRequestCreation (29498151)
Disposing (29498151)
NAV: Controller Pop at 1/31/2017 4:20:36 PM
NAV: Controller reload at 1/31/2017 4:20:36 PM Busy?False
Firing Reload from PRList (16458760)

Ah, so it is the problem where there's two views of the same type being pushed to the navigation history. When it goes "back", it goes back to the previous creation view that was pushed. Legit bug! This is likely easy to reproduce by just clicking "Refresh" when in the creation view, and then hitting back - it's likely that it will just go back to the "previous" creation view instead of the PR list.

The NavigationController that's loading things into the history has a Reload method that refreshes views in place instead of loading a new one. When GitHubPaneViewModel asks for the PR list to be loaded, and it's already the current one, the NavigationController knows how to handle that and just reloads it in place (https://github.com/github/VisualStudio/blob/master/src/GitHub.App/Controllers/NavigationController.cs#L73).

The creation view always causes a new view to be pushed, however: https://github.com/github/VisualStudio/blob/master/src/GitHub.App/Controllers/NavigationController.cs#L69.

It's fine to create a new view in this case and just throw the current view data away, but if the new view is of the same type as the current view, then we should not be adding it twice to the history, we should be popping the existing one and pushing the new one.