Use deepcopy in var_stack.push
Use deepcopy in var_stack.push

Change-Id: I4249b00297e908d1e0dc84f298671a08291d9bc5
Signed-off-by: Michael Walsh <10404802c7de463f402c4a18638106ca1b12ef61@us.ibm.com>

openbmc/openbmc-test-automation,openbmc/openbmc-test-automation