I'm seeing a lot of "Unknown Object (????)" in outbound email and haven't been able to track down the origin.
> ./bin/mail show-outbound --id 1072047 PROPERTIES ID: 1072047 Status: sent Related PHID: PHID-TASK-smnvqfbuvqja3p27aqt7 Message: PARAMETERS subject: T22657: Redacted from: PHID-USER-abzwhc667osh5mwd4gk7 subject-prefix: [Maniphest] vary-subject-prefix: [Commented On] thread-id: maniphest-task-PHID-TASK-smnvqfbuvqja3p27aqt7 is-first-message: exclude: [] herald-force-recipients: [] mailtags: ["maniphest-cc","maniphest-comment"] is-bulk: 1 cc: ["PHID-USER-yl3qonlcgmrtn3tdxppz"] reply-to: T22657+150+00280d10d1da5c4e@phabricator.redacted.com HEADERS Thread-Topic: T22657: Redacted X-Herald-Rules: <24>, none X-Phabricator-Projects: <#phabricator>, <#access> X-Phabricator-To: <> X-Phabricator-To: <PHID-USER-abzwhc667osh5mwd4gk7> X-Phabricator-Cc: <PHID-USER-abzwhc667osh5mwd4gk7> X-Phabricator-Cc: <PHID-USER-zdfjlthsika5l4t7kr5f> X-Phabricator-Cc: <PHID-USER-qmv4kxbn5feyvktqlcx7> X-Phabricator-Cc: <PHID-USER-inwz7rtaiuxgmjduhmmq> X-Phabricator-Cc: <PHID-USER-hfenohlvucsbthy2su73> X-Phabricator-Cc: <PHID-USER-yl3qonlcgmrtn3tdxppz> RECIPIENTS REDACTED TEXT BODY josh added a subscriber: josh. josh added a comment. OK, that works too. TASK DETAIL https://phabricator.redacted.com/T22657 EMAIL PREFERENCES https://phabricator.redacted.com/settings/panel/emailpreferences/ To: Unknown Object (????), josh Cc: josh, REDACTED HTML BODY <div>josh added a subscriber: josh.<br /> josh added a comment.</div><br /><p>OK, that works too.</p><br /><div><strong>TASK DETAIL</strong><div><a href="https://phabricator.redacted.com/T22657" rel="noreferrer">https://phabricator.redacted.com/T22657</a></div></div><br /><div><strong>EMAIL PREFERENCES</strong><div><a href="https://phabricator.redacted.com/settings/panel/emailpreferences/" rel="noreferrer">https://phabricator.redacted.com/settings/panel/emailpreferences/</a></div></div><br /><div><strong>To: </strong>Unknown Object (????), josh<br /><strong>Cc: </strong>josh, REDACTED<br /></div>