Unable to load relations due to self being declared twice

[JeffreyDevloo]

Problem descriptions

Relations cannot be fetched due to a bug.

core.es5.js:1020 ERROR TypeError: Cannot read property 'makeHasManyLocalKeys' of undefined
    at js-data-localstorage.js:1221
    at Array.forEach (<anonymous>)
    at js-data-localstorage.js:1220
    at LocalStorageAdapter.loadHasManyLocalKeys (js-data-localstorage.js:1245)
    at js-data-localstorage.js:1109
    at Object._forRelation (js-data.js:250)
    at js-data.js:894
    at Array.forEach (<anonymous>)
    at Object.forEachRelation (js-data.js:893)
    at js-data-localstorage.js:1100

The line of code causing the issue:

loadHasManyLocalKeys: function loadHasManyLocalKeys(mapper, def, records, __opts) {
      var self = this;
      var record = void 0;
      var relatedMapper = def.getRelation();

      if (jsData.utils.isObject(records) && !jsData.utils.isArray(records)) {
        record = records;
      }

      if (record) {
        return self.findAll(relatedMapper, {
          where: babelHelpers.defineProperty({}, relatedMapper.idAttribute, {
            'in': self.makeHasManyLocalKeys(mapper, def, record)
          })
        }, __opts).then(function (relatedItems) {
          def.setLocalField(record, relatedItems);
        });
      } else {
        var _ret2 = function () {
          var localKeys = [];
          records.forEach(function (record) {
            localKeys = localKeys.concat(self.self.makeHasManyLocalKeys(mapper, def, record));
          });
          return {
            v: self.findAll(relatedMapper, {
              where: babelHelpers.defineProperty({}, relatedMapper.idAttribute, {
                'in': unique(localKeys).filter(function (x) {
                  return x;
                })
              })
            }, __opts).then(function (relatedItems) {
              records.forEach(function (item) {
                var attached = [];
                var itemKeys = jsData.utils.get(item, def.localKeys) || [];
                itemKeys = jsData.utils.isArray(itemKeys) ? itemKeys : Object.keys(itemKeys);
                relatedItems.forEach(function (relatedItem) {
                  if (itemKeys && itemKeys.indexOf(relatedItem[relatedMapper.idAttribute]) !== -1) {
                    attached.push(relatedItem);
                  }
                });
                def.setLocalField(item, attached);
              });
              return relatedItems;
            })
          };
        }();

        if ((typeof _ret2 === 'undefined' ? 'undefined' : babelHelpers.typeof(_ret2)) === "object") return _ret2.v;
      }
    },

localKeys = localKeys.concat(self.self.makeHasManyLocalKeys(mapper, def, record));
Self is declared twice (like 1221 in the npm version of the 3.0.1beta2). The current this scope has no variable called self.
Removing one of the duplicate selfs has resolved my issue,

Thanks!