Loader does not take any actions within Model.set into account

[nedrocks]

Currently I am trying to load a model which has a Sequelize.TEXT field that stores a serialized JSON blob. Doing this outside of Postgres, I need to do the serialization / parsing within the model set and get commands. Currently sequelize-fixtures loader doesn't account for these set methods which forces the system to try and sanitize an object as though it were a string, giving me this error:

Unhandled rejection TypeError: val.replace is not a function
    at Object.SqlString.escape (/Volumes/pocketship/pocketship/node_modules/sequelize/lib/sql-string.js:63:15)
    at Object.QueryGenerator.escape (/Volumes/pocketship/pocketship/node_modules/sequelize/lib/dialects/abstract/query-generator.js:977:22)
    at Object.QueryGenerator.whereItemQuery (/Volumes/pocketship/pocketship/node_modules/sequelize/lib/dialects/abstract/query-generator.js:2260:22)
    at /Volumes/pocketship/pocketship/node_modules/sequelize/lib/dialects/abstract/query-generator.js:1891:25
    at /Volumes/pocketship/pocketship/node_modules/sequelize/node_modules/lodash/lodash.js:4389:15
    at baseForOwn (/Volumes/pocketship/pocketship/node_modules/sequelize/node_modules/lodash/lodash.js:2652:24)
    at Function.forOwn (/Volumes/pocketship/pocketship/node_modules/sequelize/node_modules/lodash/lodash.js:12254:24)
    at Object.QueryGenerator.whereItemsQuery (/Volumes/pocketship/pocketship/node_modules/sequelize/lib/dialects/abstract/query-generator.js:1890:9)
    at Object.QueryGenerator.getWhereConditions (/Volumes/pocketship/pocketship/node_modules/sequelize/lib/dialects/abstract/query-generator.js:2325:19)
    at Object.QueryGenerator.selectQuery (/Volumes/pocketship/pocketship/node_modules/sequelize/lib/dialects/abstract/query-generator.js:1451:28)
    at [object Object].QueryInterface.select (/Volumes/pocketship/pocketship/node_modules/sequelize/lib/query-interface.js:669:25)
    at [object Object].<anonymous> (/Volumes/pocketship/pocketship/node_modules/sequelize/lib/model.js:1390:32)
    at [object Object].tryCatcher (/Volumes/pocketship/pocketship/node_modules/bluebird/js/release/util.js:16:23)
    at Promise._settlePromiseFromHandler (/Volumes/pocketship/pocketship/node_modules/bluebird/js/release/promise.js:504:31)
    at Promise._settlePromise (/Volumes/pocketship/pocketship/node_modules/bluebird/js/release/promise.js:561:18)
    at Promise._settlePromise0 (/Volumes/pocketship/pocketship/node_modules/bluebird/js/release/promise.js:606:10)
    at Promise._settlePromises (/Volumes/pocketship/pocketship/node_modules/bluebird/js/release/promise.js:685:18)
    at Async._drainQueue (/Volumes/pocketship/pocketship/node_modules/bluebird/js/release/async.js:138:16)
    at Async._drainQueues (/Volumes/pocketship/pocketship/node_modules/bluebird/js/release/async.js:148:10)
    at Immediate.Async.drainQueues [as _onImmediate] (/Volumes/pocketship/pocketship/node_modules/bluebird/js/release/async.js:17:14)
    at processImmediate [as _immediateCallback] (timers.js:383:17)

My model definition has been simplified to build a reproducible case:

const Role = database.define('Role', {
  permissions: {
    type: Sequelize.TEXT,
    allowNull: false,
    get(): Object {
      return JSON.parse(this.getDataValue('permissions'));
    },
    set(val: Object): void {
      this.setDataValue('permissions', JSON.stringify(val))
    },
  }
}, {
  tableName: 'roles',
  underscored: true
});

And the loaded fixture is the following:

[
  {
    "model": "Role",
    "data": {
      "permissions": {
        "*": "*"
      }
    }
  }
]