In the CMS context (template composer / channel manager), the ResolvedMount must return a WrappedMount instance converting all parts that indicate 'live' to 'preview'

Thus, although a 'live' mount is matched, the ResolvedMount#getMount should return a WrappedMount that returns

preview for getType
previes instead of live for getTypes

the preview HstSite for getHstSite

To be checked what to do for getParent()

Perhaps this should also return a WrappedMount. Most likely