Steps:-
1] Log into the system using first admin credentials.
2] Please note that this admin has access to Full Time and Part Time Employees
3] Now create an invoice template selecting only Full Time Employees class value.
4] Generate the invoice
5] Now log into the system using second admin credentials.
6] Please note that this admin has access only top Full Time Employees.
7] Now traverse to Invoice management screen and edit the template created by First Admin.
8] Delete the invoice created by First admin and on template details screen.
9] Now login with first admin credentials and edit the invoice template created by himself.

Actual Result:-
First admin is not able to edit the invoice details nor see the generate invoice tab.