[SVG output] mover + (sub-)sub-script renders too far away from base
E.g., in $A_{a_\bar{a}}$
the bar almost as a supescript level of the subscript. $A_\bar{a}$
also has the bar too high (compared to either CSS output).
E.g., in $A_{a_\bar{a}}$
the bar almost as a supescript level of the subscript. $A_\bar{a}$
also has the bar too high (compared to either CSS output).