[TYPO3-core] RFC #11111: Bug: Root item cannot be collapsed in pagetree

[Benjamin Mack]

Hey all,

as this is a followup to #10892, I commited this patch right away after 
reviewing and testing myself.

I clearly don't like the "bugfix to a bugfix changes", just shows that 
we're not careful enough when reviewing. Maybe we can find some common 
guidelines how to review / test a patch?

All the best,
Benni.