Fix find_handler_for method

[ogidow]

parent_handler will be assigned the result of find_handler_for method.

graphql-ruby/lib/graphql/execution/errors.rb

Line 142 in ba3a0ce

parent_handler = parent_errors.find_handler_for(error_class)

Since the parent_handler expects a hash object with :handler and :class as keys, find_handler_for method must maintain that interface

graphql-ruby/lib/graphql/execution/errors.rb

Line 150 in ba3a0ce

if parent_handler && handler && parent_handler[:class] < handler[:class]

[rmosolgo]

Thanks for the fix! I added a test, too.

[rmosolgo]

🚢 in 1.12.8!