Slightly unhelpful admin error message

[DaveP]

Not a huge problem, but had me puzzled for a couple of minutes...

1. Making a new site, I moved most pages from the standard template into Trash, if only temporarily.
   
2. With a view to the client eventually doing some page editing etc, I limited the child templates allowed under 'Home' to 'basic-page' and 'info-page'. (Which caused the problem.)
   
3. Tried to move 'Search' out of Trash in admin gui and an alert popped up saying I hadn't got permission to move the page. (Moi, le superuser?)
   
4. Edited Search page to change its parent and got a much more helpful error message -

   Can't move '1000_search' because Template 'home' used by '/' doesn't allow children with this template.

   Aaah, now I understand!
   

So, tl;dr, the alert error message in this case should explain the issue a bit better.