When exporting data (& subsequently importing it) - if we import an entire "site" (that uses site specific assets), when we then change the start page of our site to the imported startpage "Home (2)", the site assets root link is left at "12". We need to manually update tblSiteDefinition to set the new site assets root link.

Having a content reference setting (like setting a start page) on the "manage websites" admin screen will allow us to configure this a lot easier and give a lot more flexibility with regards to Site Specific Assets when importing a full "site".