texmath-0.6.7: tests/readers/mml/munder-01.native
[EGrouped [EUnder (EText TextNormal "BASE") (EText TextNormal "under"),ESymbol Op "=",EUnder (EGrouped [EUnder (EText TextNormal "BASE") (EText TextNormal "under")]) (EUnary "\\phantom" (EGrouped [EText TextNormal "under"]))]]