Loopback Model Discovery, bug?

datasource-tasks-results

//DataSource.prototype.discoverSchemas
//async.parallel(tasks, function (err, results) {
//  console.log(results);
//https://github.com/strongloop/loopback-datasource-juggler/blob/master/lib/datasource.js#L1205
[ 
  [ 
    { owner: 'chosendb',
      tableName: 'chosentable',
      columnName: 'id' 
    },
    { owner: 'chosendb',
      tableName: 'chosentable',
      columnName: 'name'
    },
    { owner: 'chosendb',
      tableName: 'chosentable',
      columnName: 'some_column'
    },
    { owner: 'chosendb2',
      tableName: 'chosentable',
      columnName: 'id' 
    },
    { owner: 'chosendb2',
      tableName: 'chosentable',
      columnName: 'name'
    },
    { owner: 'chosendb5',
      tableName: 'chosentable',
      columnName: 'id'
    },
    { owner: 'chosendb5',
      tableName: 'chosentable',
      columnName: 'name'
    },
    { owner: 'chosendb5',
      tableName: 'chosentable',
      columnName: 'chosentable_features__id'
    } 
  ],
  [ 
    { owner: 'chosendb',
      tableName: 'chosentable',
      columnName: 'id'
    },
    { owner: 'chosendb2',
      tableName: 'chosentable',
      columnName: 'id'
    },
    { owner: 'chosendb5',
      tableName: 'chosentable',
      columnName: 'id'
    } 
  ] 
]

discover.js

//
// WARNING: THIS FILE WILL NOT RUN UNTIL YOU INSTALL, ADD, AND CONFIGURE A
// MYSQL DATA SOURCE, FOLLOWING INSTRUCTIONS IN "Getting Started with LoopBack"
// See http://docs.strongloop.com/display/LB2/Connect+an+API+to+a+datasource
//
var fs = require('fs');
var loopback = require('loopback');
var app_dir = '/app_dir/';
/*
var dataSource = loopback.createDataSource('mysql', {
  "host": "localhost",
  "port": 3306,
  "database": "chosendb5",
  "username": "root",
  "password": "pass"
});
var db = 'chosendb5', owner = 'root';
*/

var app = require('./server');
var dataSource = app.dataSources.chosendb5;
//console.log(dataSource);
var db = 'chosendb5', owner = 'root';

function capitaliseFirstLetter(string){
  return string.charAt(0).toUpperCase() + string.slice(1);
}

function jsFileString(model_name){
  return '' +
    'module.exports = function(' + capitaliseFirstLetter(model_name) + ') {\n' +
      '\t\n' +
    '};';
}

function autoGenerateModelFiles(){
  dataSource.discoverModelDefinitions({schema:db}, function (err, models) {
    models.forEach(function (model) {
      dataSource.discoverSchema(model.name, {associations: true}, function (err, schema) {
        if( schema.options.mysql.schema !== db ){
          console.log('options.mysql.schema !== db', schema);
        }
        fs.writeFile( app_dir + 'common/models/' + model.name + '.json', JSON.stringify(schema, null, '  '), function (err) {
          if (err) throw err;
          console.log('Saved ' + model.name);
        });
        fs.writeFile( app_dir + 'common/models/' + model.name + '.js', jsFileString(model.name), function (err) {
          if (err) throw err;
          console.log('Created ' + model.name + '.json file');
        });
      });
    });
  });
}

autoGenerateModelFiles();