Horizontal alignment of base with munder/mover scripts (accent="false")

munderover
Over < Base < Under	Over > Base > Under	Over = Under < Base	Over = Under > Base
$_{}^{}$	$_{}^{}$	$_{}^{}$	$_{}^{}$

munderover

Over < Base < Under

Over > Base > Under

Over = Under < Base

Over = Under > Base

_{}^{}

_{}^{}

_{}^{}

_{}^{}