function _findDupe(item) {
    let id = item.addonID;

    // The reconciler should have been updated at the top of the sync, so we
    // can assume it is up to date when this function is called.
    let addons = this._reconciler.addons;
    if (!(id in addons)) {
      return null;
    }

    let addon = addons[id];
    if (addon.guid != item.id) {
      return addon.guid;
    }

    return null;
  }
/**
   * Override parent method to find add-ons by their public ID, not Sync GUID.
   */
Override parent method to find add-ons by their public ID, not Sync GUID.
Override parent method to find add - ons by their public ID not Sync GUID .
function _findDupe(item) {
    let id = item.addonID;
    let addons = this._reconciler.addons;
    if (!(id in addons)) {
      return null;
    }
    let addon = addons[id];
    if (addon.guid != item.id) {
      return addon.guid;
    }
    return null;
  }
function _findDupe ( item ) { let id = item . addonID ; let addons = this . _reconciler . addons ; if ( ! ( id in addons ) ) { return null ; } let addon = addons [ id ] ; if ( addon . guid != item . id ) { return addon . guid ; } return null ; }
Override parent method to find add-ons by their public ID, not Sync GUID.
Override parent method to find add - ons by their public ID not Sync GUID .
// The reconciler should have been updated at the top of the sync, so we // can assume it is up to date when this function is called.