Parse GlobalID types prefixed with EE as if not prefixed

app/graphql/gitlab_schema.rb

@@ -48,6 +48,13 @@ class GitlabSchema < GraphQL::Schema
       super(query_str, **kwargs)
     end
 
+    def get_type(type_name)
+      # This is a backwards compatibility hack to work around an accidentally
+      # released argument typed as EEIterationID
+      type_name = type_name.gsub(/^EE/, '') if type_name.end_with?('ID')
+      super(type_name)
+    end
+
     def id_from_object(object, _type = nil, _ctx = nil)
       unless object.respond_to?(:to_global_id)
         # This is an error in our schema and needs to be solved. So raise a
@@ -144,6 +151,13 @@ class GitlabSchema < GraphQL::Schema
       end
     end
   end
+
+  # This is a backwards compatibility hack to work around an accidentally
+  # released argument typed as EE{Type}ID
+  def get_type(type_name)
+    type_name = type_name.gsub(/^EE/, '') if type_name.end_with?('ID')
+    super(type_name)
+  end
 end
 
 GitlabSchema.prepend_if_ee('EE::GitlabSchema') # rubocop: disable Cop/InjectEnterpriseEditionModule