scholdoc-texmath-0.1: tests/writers/munder-09.tex
\overset{\phantom{fail}}{\underset{bottom}{-\ middle\ -}} = \underset{bottom}{\overset{\phantom{fail}}{-\ middle\ -}}
\overset{\phantom{fail}}{\underset{bottom}{-\ middle\ -}} = \underset{bottom}{\overset{\phantom{fail}}{-\ middle\ -}}