PEGTL backtracking on field_arguments

[gruzdev]

The field_content rule in Grammar.h is formulated in terms or sor. It introduces a lot of backtracking on field_arguments. Why not just make field_selection_set optional? Am I missing something?
struct field_content : seq<field_arguments, opt<field_directives>, opt<field_selection_set>> { };

[wravery]

Makes sense, I don't see any reason not to make this change. Thanks for the suggestion!