Fix compose reply view missing MastodonController instance

Tusker/Screens/Compose/ComposeViewController.swift

@@ -193,6 +193,7 @@ class ComposeViewController: UIViewController {
         }
         
         let replyView = ComposeStatusReplyView.create()
+        replyView.mastodonController = mastodonController
         replyView.updateUI(for: inReplyTo)
         stackView.insertArrangedSubview(replyView, at: 0)
         

Tusker/Views/Compose Status Reply/ComposeStatusReplyView.swift

@@ -10,6 +10,8 @@ import UIKit
 import Pachyderm
 
 class ComposeStatusReplyView: UIView {
+    
+    weak var mastodonController: MastodonController?
 
     @IBOutlet weak var avatarImageView: UIImageView!
     @IBOutlet weak var displayNameLabel: UILabel!
@@ -34,6 +36,7 @@ class ComposeStatusReplyView: UIView {
     func updateUI(for status: Status) {
         displayNameLabel.text = status.account.realDisplayName
         usernameLabel.text = "@\(status.account.acct)"
+        statusContentTextView.overrideMastodonController = mastodonController
         statusContentTextView.statusID = status.id
         
         ImageCache.avatars.get(status.account.avatar) { (data) in

Tusker/Views/ContentTextView.swift

@@ -16,8 +16,9 @@ private let emojiRegex = try! NSRegularExpression(pattern: ":(\\w+):", options:
 class ContentTextView: LinkTextView {
     
     weak var navigationDelegate: TuskerNavigationDelegate?
-    var mastodonController: MastodonController? { navigationDelegate?.apiController }
-    
+    weak var overrideMastodonController: MastodonController?
+    var mastodonController: MastodonController? { overrideMastodonController ?? navigationDelegate?.apiController }
+
     var defaultFont: UIFont = .systemFont(ofSize: 17)
     var defaultColor: UIColor = .label