[Typo3] Shortcut and "show content from page" - differences?

[Michael Scharkow]

Hi,

I just used the field  	"Show content from this page instead" in the 
advanced page type, and I do not understand how this differs from a 
regular shortcut page type, especially since the behaviour is the same 
if the target is hidden/deleted. In this cases, a "rootline 
broken"-error is thrown, although I'd expect a 404 for a shortcut type 
and an empty page for the "show content from page" case.

Can anybody give me some hints or pointers to where this is documented?

Greetings,
Michael