Property inspector does not update to selected document node

[gfringeli]

Description

Property inspector does not update its content to the currently selected document node in the page tree, if a content node has been selected in the structure tree before. This is an issue that occurs inside the Neos Backend, when rendering several document nodes on the same "webpage". An example for this structure is a one-page website consisting of several page sections, where each section is represented as a document node in the page tree.

Steps to Reproduce

1. Go to the backend of a Neos site having the page structure described above.
2. In the structure tree, select a content node.
3. In the page tree, select a node.

Expected behavior

The property inspector should now update and show properties/information of the selected node of the page tree. Additionally, the selected node should be outlined inside the content canvas.

Actual behavior

The property inspector is still showing properties/information of the content node that has been selected first and not of the node selected in the page tree. In the content canvas the node selected last is not showing the usual blue outline.

Affected Versions

Neos: 3.1.1 Flow: 4.1.0 (Other versions may be affected as well.)