texmath-0.7: tests/writers/moAmovable15.tex
\sum\limits_{x}^{0} = \sum\limits_{x}^{0} = \sum\limits_{x}^{0} = {\sum\limits_{x}^{0} = \sum\limits_{x}^{0} = \sum\limits_{x}^{0}}
\sum\limits_{x}^{0} = \sum\limits_{x}^{0} = \sum\limits_{x}^{0} = {\sum\limits_{x}^{0} = \sum\limits_{x}^{0} = \sum\limits_{x}^{0}}