fix shiftCurrentPage

Signed-off-by: marinofaggiana <marino@marinofaggiana.com>

Nextcloud.xcodeproj/project.pbxproj

@@ -2951,7 +2951,7 @@
 			repositoryURL = "https://github.com/nextcloud/ios-communication-library/";
 			requirement = {
 				kind = revision;
-				revision = ceb3d6574cd24b047925df92775e685de988e71d;
+				revision = 9b748dd71eff508307e6091f790b5a05be0509e4;
 			};
 		};
 		F788ECC5263AAAF900ADC67F /* XCRemoteSwiftPackageReference "MarkdownKit" */ = {

Nextcloud.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -105,7 +105,7 @@
         "repositoryURL": "https://github.com/nextcloud/ios-communication-library/",
         "state": {
           "branch": null,
-          "revision": "ceb3d6574cd24b047925df92775e685de988e71d",
+          "revision": "9b748dd71eff508307e6091f790b5a05be0509e4",
           "version": null
         }
       },

iOSClient/Viewer/NCViewerMedia/NCViewerMedia.swift

@@ -413,6 +413,7 @@ extension NCViewerMedia: UIPageViewControllerDelegate, UIPageViewControllerDataS
     
     func shiftCurrentPage() -> Bool {
         if metadatas.count == 0 { return false }
+        cache.removeAll()
         
         var direction: UIPageViewController.NavigationDirection = .forward
         if currentIndex == metadatas.count {
@@ -437,7 +438,6 @@ extension NCViewerMedia: UIPageViewControllerDelegate, UIPageViewControllerDataS
                 currentIndex = 0
             } else {
                 currentIndex += 1
-
             }
         } else if direction == .forward && currentIndex == 0 {
             if currentIndex == 0 {