Fix a lisk issue
Summary:
This was broken in D12680.
EXCEPTION: (PhutilJSONParserException) Parse error on line 0 at column 0: 'null' is not a valid JSON object. at [<phutil>/src/parser/PhutilJSONParser.php:41] #0 PhutilJSONParser::parse(string) called at [<phutil>/src/utils/utils.php:1062] #1 phutil_json_decode(string) called at [<phabricator>/src/infrastructure/storage/lisk/LiskDAO.php:1640] #2 LiskDAO::applyLiskDataSerialization(array, boolean) called at [<phabricator>/src/infrastructure/storage/lisk/LiskDAO.php:1386] #3 LiskDAO::willReadData(array) called at [<phabricator>/src/infrastructure/storage/lisk/PhabricatorLiskDAO.php:214] #4 PhabricatorLiskDAO::willReadData(array) called at [<phabricator>/src/infrastructure/storage/lisk/LiskDAO.php:608] #5 LiskDAO::loadFromArray(array) called at [<phabricator>/src/infrastructure/storage/lisk/LiskDAO.php:652] #6 LiskDAO::loadAllFromArray(array) called at [<phabricator>/src/applications/transactions/query/PhabricatorApplicationTransactionQuery.php:62] #7 PhabricatorApplicationTransactionQuery::loadPage() called at [<phabricator>/src/infrastructure/query/policy/PhabricatorPolicyAwareQuery.php:227] #8 PhabricatorPolicyAwareQuery::execute() called at [<phabricator>/src/infrastructure/query/policy/PhabricatorCursorPagedPolicyAwareQuery.php:143] #9 PhabricatorCursorPagedPolicyAwareQuery::executeWithCursorPager(AphrontCursorPagerView) called at [<phabricator>/src/applications/base/controller/PhabricatorController.php:577] #10 PhabricatorController::buildTransactionTimeline(PhabricatorPaste, PhabricatorPasteTransactionQuery) called at [<phabricator>/src/applications/paste/controller/PhabricatorPasteViewControll
Test Plan: No exception shown.
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: Korvin, epriestley
Differential Revision: https://secure.phabricator.com/D12714