I cannot reproduce with git clone using the internal URIs listed on https://phabricator.wikimedia.org/source/1582/manage/uris/ ; I assume some upstream bug here. This is the only repo with such issues.
mysql:phstats@m3-slave.eqiad.wmnet [phabricator_maniphest]> SELECT r.name, r.id, rp.remoteProtocol, rp.properties FROM phabricator_repository.repository_pullevent rp INNER JOIN phabricator_repository.repository r ON r.phid = rp.repositoryPHID WHERE properties != "null" AND r.id = 1582;
+-------------+------+----------------+------------------------------------------------------------------------------------------------------------------+
| name | id | remoteProtocol | properties |
+-------------+------+----------------+------------------------------------------------------------------------------------------------------------------+
| Phabricator | 1582 | https | {"exception.class":"RuntimeException","exception.message":"Trying to access array offset on value of type null"} |
| Phabricator | 1582 | https | {"exception.class":"RuntimeException","exception.message":"Trying to access array offset on value of type null"} |
| Phabricator | 1582 | https | {"exception.class":"RuntimeException","exception.message":"Trying to access array offset on value of type null"} |
| Phabricator | 1582 | https | {"exception.class":"RuntimeException","exception.message":"Trying to access array offset on value of type null"} |
+-------------+------+----------------+------------------------------------------------------------------------------------------------------------------+
4 rows in set (0.001 sec)