title: iOS ShareContext tapping on Suggestion Intent property of extensionContext is nil
body: <p>I have a ShareExtension in my iOS app.  I am trying to use Suggestions.  I can successfully 'donate' the intent using the following code from the apple developer website:</p>
  <pre><code>let groupName = INSpeakableString(spokenPhrase: &quot;Juan Chavez&quot;)
  let sendMessageIntent = INSendMessageIntent(recipients: nil,
                                              content: nil,
                                              speakableGroupName: groupName,
                                              conversationIdentifier: &quot;sampleConversationIdentifier&quot;,
                                              serviceName: nil,
                                              sender: nil)
  
  // Add the user's avatar to the intent.
  let image = INImage(named: &quot;Juan Chavez&quot;)
  sendMessageIntent.setImage(image, forParameterNamed: \.speakableGroupName)
  
  // Donate the intent.
  let interaction = INInteraction(intent: sendMessageIntent, response: nil)
  interaction.donate(completion: { error in
      if error != nil {
          // Add error handling here.
      } else {
          // Do something, e.g. send the content to a contact.
      }
  })
  </code></pre>
  <p>This works fine and I am able to see my app icon in the suggestion row on the top for each conversation.  However when I click on the suggestion, the intent property of the extentsionContext is nil:</p>
  <pre><code>override func viewDidLoad() {
          super.viewDidLoad()
          
          // Populate the recipient property with the metadata in case the user tapped a suggestion from the share sheet.
          let intent = self.extensionContext?.intent as? INSendMessageIntent
          if intent != nil { // this is nil despite selecting suggestion
              let conversationIdentifier = intent!.conversationIdentifier
              self.recipient = recipient(identifier: conversationIdentifier!)
          }
      }
  </code></pre>
  <p>My ShareExtension plist is as follows:</p>
  <p><a href="https://i.stack.imgur.com/s9NEy.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/s9NEy.png" alt="enter image description here" /></a></p>
  <p>The other odd behaviour is that I'm able to do the donate from the main app but not from the app extension.  In the main app the only relevant entry in the plist is the same NSUserActivityTypes entry.  Not the NSExtension entries.</p>
  <p>My understanding is that tapping on the suggestion, the extensionContext should contain the intent.</p>