Mutations builder in slash doesn't work correctly

Hi,

The scheme that is generated by slash expects in each input to contain a [TypeInput!]!, yet when creating a new mutation with the mutation builder under the api explorer it creates the mutation in th following foramt:

mutation MyMutation {
  addUser(input: {username: "", email: ""})
}

When I add [] the mutation builder is getting broken as in the pictures (the input desapear):

before
before

after
after

Yes, this is a duplicate of the one @amaster507 linked. Thanks for the report, we’ll be looking into this