All items are restricted in tree (Password menu)

[manusfreedom]

Tested with the latest Github code (master):
I have permission on all items, but I can only see them using the tree (password).
It works with search.

sources/items.queries.php line 3926:
$accessLevel = count($arrTmp) > 0 ? max($arrTmp) : $accessLevel;
My max is 50 (the array has 30 because of W and 50 because of NULL/count=0) but 50 gets no permission (between lines 4227 and 4361).

NB: I think the algorithm is wrong (and not very easy to maintain) and why not use a constant (with an understandable name) instead of an int value everywhere?