Disable prefetching on the tableview because we sometimes change the icon after the item is prefetched, but before it is visible. Fixes #3352

iOS/MasterTimeline/MasterTimelineViewController.swift

@@ -83,6 +83,10 @@ class MasterTimelineViewController: UITableViewController, UndoableCommandRunner
 		iconSize = AppDefaults.shared.timelineIconSize
 		resetEstimatedRowHeight()
 
+		if #available(iOS 15, *) {
+			tableView.isPrefetchingEnabled = false
+		}		
+		
 		if let titleView = Bundle.main.loadNibNamed("MasterTimelineTitleView", owner: self, options: nil)?[0] as? MasterTimelineTitleView {
 			navigationItem.titleView = titleView
 		}