Warehouse number restriction for User with multiple roles

[krishan_yadav2]

A user is assigned multiple role:

ROle-1: Tcodes LS23, LX02, LS26

With warehouse number(via field LGNUM)  restricted to : 1111

Role-2: Tcodes: Ztcode (custom tcode like Zcust1) 

With warehouse number (via field LGNUM) restricted to: 2222, 4444

When both these roles are assigned to a user,  does it mean while executing LS23 he will have access for both warehouse 111 as well as 2222, 4444 ?

Do we need to maintain same LGNUM values for all roles assigned to a user, I was expecting field values are binded to tcodes and while executing LS23 he will get access for only 1111 and while executing Zcust1 he will get access only for warehouse 2222,4444.

Is there any way to achieve this?

Thanks.