Issue Summary

When a user navigates from some existing browser history state to initial (by clicking an app link in the navigation panel) `AP.history.popState` doesn't trigger

Steps to Reproduce

1. Prepare an app with the Custom Content module:
   • register a type on a space level (`supportedContainerTypes: ['space']`)
   • add listViewComponent property and refer to `generalPages` module
2. Implement `generalPage` module
   • add usage of `AP.history` module
   • add a new state to history with `AP.history.pushState("page1");`
   • add a listener when a state is changed with `AP.history.popState`
3. Install the app on some instance. The link should appear on the navigation panel
4. Click on a link on the navigation panel
5. Ensure that a state is changed to "page1" (the url should contain `#!page1` location hash)
6. Click on a link on the navigation panel again

Expected Results

`AP.history.popState` should be invoked

Actual Results

History is updated, `AP.history.popState` is not invoked

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available