Don't use caption field

Signal/src/ViewControllers/ConversationView/ConversationViewController.m

@@ -2815,7 +2815,7 @@ typedef enum : NSUInteger {
     }
 }
 
-- (void)sendMessageAttachments:(NSArray<SignalAttachment *> *)attachments
+- (void)sendMessageAttachments:(NSArray<SignalAttachment *> *)attachments messageText:(nullable NSString *)messageText
 {
     OWSAssertIsOnMainThread();
     for (SignalAttachment *attachment in attachments) {
@@ -2824,8 +2824,9 @@ typedef enum : NSUInteger {
     }
 
     BOOL didAddToProfileWhitelist = [ThreadUtil addThreadToProfileWhitelistIfEmptyContactThread:self.thread];
+
     TSOutgoingMessage *message = [ThreadUtil enqueueMessageWithAttachments:attachments
-                                                               messageBody:nil
+                                                               messageBody:messageText
                                                                   inThread:self.thread
                                                           quotedReplyModel:self.inputToolbar.quotedReply];
 
@@ -3546,7 +3547,7 @@ typedef enum : NSUInteger {
         }
 
         if (skipApprovalDialog) {
-            [self sendMessageAttachments:attachments];
+            [self sendMessageAttachments:attachments messageText:nil];
         } else {
             OWSNavigationController *modal =
                 [AttachmentApprovalViewController wrappedInNavControllerWithAttachments:attachments
@@ -3662,8 +3663,9 @@ typedef enum : NSUInteger {
 
 - (void)attachmentApproval:(AttachmentApprovalViewController *)attachmentApproval
      didApproveAttachments:(NSArray<SignalAttachment *> *)attachments
+               messageText:(nullable NSString *)messageText
 {
-    [self sendMessageAttachments:attachments];
+    [self sendMessageAttachments:attachments messageText:messageText];
     [self dismissViewControllerAnimated:YES completion:nil];
     // We always want to scroll to the bottom of the conversation after the local user
     // sends a message.  Normally, this is taken care of in yapDatabaseModified:, but

SignalMessaging/ViewControllers/AttachmentApprovalViewController.swift

@@ -8,7 +8,7 @@ import MediaPlayer
 
 @objc
 public protocol AttachmentApprovalViewControllerDelegate: class {
-    func attachmentApproval(_ attachmentApproval: AttachmentApprovalViewController, didApproveAttachments attachments: [SignalAttachment])
+    func attachmentApproval(_ attachmentApproval: AttachmentApprovalViewController, didApproveAttachments attachments: [SignalAttachment], messageText: String?)
     func attachmentApproval(_ attachmentApproval: AttachmentApprovalViewController, didCancelAttachments attachments: [SignalAttachment])
 }
 
@@ -326,11 +326,14 @@ public class AttachmentApprovalViewController: UIPageViewController, UIPageViewC
         captioningToolbar.isUserInteractionEnabled = false
         captioningToolbar.isHidden = true
 
-        approvalDelegate?.attachmentApproval(self, didApproveAttachments: attachments)
+        approvalDelegate?.attachmentApproval(self, didApproveAttachments: attachments, messageText: captioningToolbar.captionText)
     }
 
     func captioningToolbar(_ captioningToolbar: CaptioningToolbar, textViewDidChange textView: UITextView) {
-        currentItem.attachment.captionText = textView.text
+        // For 2.32.0 we only have one input bar - and it's for mesageBody text, not for caption text.
+        // For 2.33.0 there are potentially two input bars - one for message body and one for caption text.
+        // Commenting this out for now, but we'll have to resolve this merge conflict when RI'ing to 2.33
+        // currentItem.attachment.captionText = textView.text
     }
 }