[Jmap] Email/get after an Email/set with create

[Mildred Ki'Lya <[e-mail]>]

Hello,

It seems I ran in a corner case in JMAP. I'm trying to get an Email 
object right after its creation. The reason is that I can then access 
fields generated by the server such as the Message-ID or other headers.

My JMAP request looks like:

       ['Email/set', {
         accountId: jMail.accountId,
         destroy: [ email.id ],
         create: {
           draft: {
             mailboxIds: {
               [mailboxId]: true
             },
             messageId: email.messageId,
             subject: subject,
             bodyStructure: {
               type: "text/plain",
               partId: "body"
             },
             bodyValues: {
               body: {
                 value: body,
                 isTruncated: false
               }
             }
           }
         }
       }, '1'],
       ['Email/get', {
         accountId: jMail.accountId,
         "#ids": { resultOf: "1", name: "Email/set", path: "/created/*/id" }
       }, '2']

Here, the Email/get request fails because the path (/created/*/id) is 
invalid. Indeed, "/created" represents a JSON object indexed by a 
temporary id ("draft" in my example). I see no way to get the Email 
object without another round-trip.

Can someone enlighten me if I missed something?

Thank you