Document tree not refreshed when documents are created

If <nuxeo-document-tree> does not have the current document bound (ie current-document="[[document]]") then the tree is not properly refreshed when children are created.

This behaviour is not present in the default contribution since the tree's current-document is bound to the app's current document causing the tree's current path to change thus triggering a refresh. But if we use a custom tree (ie <nuxeo-document-tree root-doc-path="/default-domain">) we can reproduce the issue.