If you open a Launch of an AEM page, the SiteRoot.getRootPath() returns the wrong path.
Steps to reproduce:
Site to site admin, select a page with a Launch (e.g. a page in a translation project)
In the side panel go to References > Launches, select a launch and click on "Go to the Page"
The page is being called in edit mode like
Every component which uses the SiteRoot model (e.g. the main navigation) throws an NPE, because the node at site root level is one of the nt:Folders "launches/2018/10/16" which cannot be adapted to a page
The SiteRoot should use the original root path, when is called from a Launch page