ssb: Fix composing private drafts.

apps/ssb.json

@@ -1,5 +1,5 @@
 {
 	"type": "tildefriends-app",
 	"emoji": "🦀",
-	"previous": "&dG2winiXQktKgYn8MEX+K7HUtY7PfYh1a9L9IVdCrtM=.sha256"
+	"previous": "&vvbZ1UaJgi4mVonUOmevMO4iB1tL70vhCA/Jo8tnaX4=.sha256"
 }

apps/ssb/tf-compose.js

@@ -92,7 +92,7 @@ class TfComposeElement extends LitElement {
 				bubbles: true,
 				composed: true,
 				detail: {
-					id: this.branch,
+					id: this.branch ?? (this.recipients ? this.recipients.join(',') : undefined),
 					draft: draft,
 				},
 			})