Issue #1704322: Use label_id as the index value for operation labels data member at loading.

  public $type;

  /**

   * An array of branches or tags that were affected by this

   * operation. Branch and tag operations are known to only affect one

   * branch or tag, so for these there will be only one element (with 0

   * as key) in 'labels'. Commits might affect any number of branches,

   * including none. Commits that emulate branches and/or tags (like

   * in Subversion, where they're not a native concept) can also include

   * add/delete/move operations for labels, as detailed below.

   * Mind that the main development branch - e.g. 'HEAD', 'trunk'

   * or 'master' - is also considered a branch. Each element in 'labels'

   * is a VersioncontrolLabel(VersioncontrolBranch VersioncontrolTag)

   * An array of branches or tags that were affected by this operation.

   *

   * Commits might affect any number of branches or tags, including none.

   *

   * Commits that emulate branches and/or tags (like in Subversion, where

   * they're not a native concept) can also include add/delete/move operations

   * for labels, as detailed below.

   * Mind that the main development branch - e.g. 'HEAD', 'trunk' or 'master' -

   * is also considered a branch. Each element in 'labels' is a

   * VersioncontrolBranch or a VersioncontrolTag.

   *

   * This array is indexed with the label_id as the key, but only when loaded

   * through the operation controller, so that value should not be trusted when

   * the labels are being changed, i.e. on CRUD. Use the label label_id data

   * member in those cases.

   *

   * @var array

   */

    // Attach each label to the labels array on the respective operation data.

    foreach ($result as $label) {

      $label->repository = $this->options['repository'];

      $queried_entities[$label->vc_op_id]->labels[$label->name] = $this->backend

      $queried_entities[$label->vc_op_id]->labels[$label->label_id] = $this->backend

        ->buildEntity($label->type == VERSIONCONTROL_LABEL_BRANCH ? 'branch' : 'tag', $label);

    }

  }