lib/plurimath/unicode_math/transform.rb in plurimath-0.8.13 vs lib/plurimath/unicode_math/transform.rb in plurimath-0.8.14

@@ -80,9 +80,10 @@
       rule(diacritic_belows: simple(:belows)) { belows }
       rule(unary_function: simple(:function)) { function }
       rule(sup_recursion: simple(:recursion)) { recursion }
       rule(nary_sub_sup: simple(:subsup_exp)) { subsup_exp }
       rule(open_paren: sequence(:open_paren)) { open_paren }
+      rule(subsup_exp: sequence(:subsup_exp)) { Utility.filter_values(subsup_exp) }
 
       rule(diacritics_accents: simple(:accent)) { accent }
       rule(mini_sub_sup: simple(:mini_sub_sup)) { mini_sub_sup }
       rule(unary_subsup: simple(:unary_subsup)) { unary_subsup }
       rule(exclamation_symbol: simple(:symbol)) { Utility.symbols_class(symbol, lang: :unicodemath) }