fix: set scaling correctly when switching between apps

ImageViewer/ViewController.swift

@@ -266,7 +266,7 @@ class ViewController: UIViewController, UIGestureRecognizerDelegate {
     func getMetadataFromFilename(path: URL) {
         // Beautiful, is it not?
         let patterns: [(NSRegularExpression, NSRegularExpression, Int, Int, Int)] = [
-            (try! NSRegularExpression(pattern: #"c([0-9]+(?:x[0-9]+)?) \(v([0-9]+)\) - p([0-9]+(?:-[0-9]+)?)"#), try! NSRegularExpression(pattern: #"^(.*) - c([0-9]+(?:x[0-9]+)?) \(v([0-9]+)\) - p([0-9]+(?:-[0-9]+)?)"#), 3, 1, 2),
+            (try! NSRegularExpression(pattern: #"c([0-9]+(?:x[0-9]+)?) \(v([0-9]+)\) - p([0-9]+(?:-p?[0-9]+)?)"#), try! NSRegularExpression(pattern: #"^(.*) - c([0-9]+(?:x[0-9]+)?) \(v([0-9]+)\) - p([0-9]+(?:-p?[0-9]+)?)"#), 3, 1, 2),
             (try! NSRegularExpression(pattern: "v([0-9]+) p([0-9]+(?:-[0-9]+)?) - c([0-9]+(?:x[0-9]+)?)"), try! NSRegularExpression(pattern: "^(.*) - v([0-9]+) p([0-9]+(?:-[0-9]+)?) - c([0-9]+(?:x[0-9]+)?)"), 2, 3, 1),
         ]
         var pattern: NSRegularExpression! = nil
@@ -676,6 +676,15 @@ class ViewController: UIViewController, UIGestureRecognizerDelegate {
         if scrollingCollectionView.isHidden == true || mode != .scroll
             || scrollingCollectionView.contentSize == .zero
         {
+            if metadata == nil { return }
+            imageLoader.loadImage(
+                archiveURL: getArchiveURL(progress.v),
+                filename: getImagePath(progress),
+                scaling: .scaleAspectFit,
+                screenSize: UIScreen.main.bounds.size
+            ) { image in
+                self.imageView.image = image
+            }
             return
         }
         if !hasSetContentOffset, scrollPos != nil {