There can be only one variable named \"$hasura_json_var_1\

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I created this issue #7170.

My mutation is working fine on hasura/graphql-engine:v2.0.0-alpha.10.cli-migrations-v3
But it returns error on latest version hasura/graphql-engine:v2.0.0-beta.2.cli-migrations-v3

Mutation and version is mentioned in issue link also

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EmployeeType

type EmployeeType {
id: Int
name: String
}

BadgeType

type BadgeType {
icon: String
name: String
}

Also I connected remote schema inside my hasura and created custom resolver. It is working fine on remote schema url