More logging to try and pin down LazilyDecoding EXC_BAD_ACCESS

Tusker/Screens/Timeline/TimelineViewController.swift

@@ -574,6 +574,11 @@ class TimelineViewController: UIViewController, TimelineLikeCollectionViewContro
         var count = 0
         while count < 5 {
             count += 1
+            
+            let crumb = Breadcrumb(level: .info, category: "TimelineViewController")
+            crumb.message = "scrollToItem, attempt=\(count)"
+            SentrySDK.addBreadcrumb(crumb)
+            
             let origOffset = self.collectionView.contentOffset
             self.collectionView.layoutIfNeeded()
             self.collectionView.scrollToItem(at: indexPath, at: .centeredVertically, animated: false)