PhabricatorPHIDMailStamp.php
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PhabricatorPHIDMailStamp.php
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			<?php

			final class PhabricatorPHIDMailStamp
			extends PhabricatorMailStamp {

			const STAMPTYPE = 'phid';

			public function renderStamps($value) {
			if ($value === null) {
			return null;
			}

			$value = (array)$value;
			if (!$value) {
			return null;
			}

			// TODO: This recovers from a bug where blocking reviewers were serialized
			// incorrectly into the flat mail stamp list in the worker queue as arrays.
			// It can be removed some time after February 2018.
			foreach ($value as $key => $v) {
			if (is_array($v)) {
			unset($value[$key]);
			}
			}

			$viewer = $this->getViewer();
			$handles = $viewer->loadHandles($value);

			$results = array();
			foreach ($value as $phid) {
			$handle = $handles[$phid];

			$mail_name = $handle->getMailStampName();
			if ($mail_name === null) {
			$mail_name = $handle->getPHID();
			}

			$results[] = $this->renderStamp($this->getKey(), $mail_name);
			}

			return $results;
			}

			}