Fixed duplicating layer not duplicate anim data

src/PixiEditor.ChangeableDocument/Changes/Animation/CreateAnimationDataFromLayer_Change.cs

@@ -0,0 +1,58 @@
+using PixiEditor.ChangeableDocument.Changeables.Animations;
+using PixiEditor.ChangeableDocument.Changeables.Graph.Nodes;
+using PixiEditor.ChangeableDocument.ChangeInfos.Animation;
+
+namespace PixiEditor.ChangeableDocument.Changes.Animation;
+
+internal class CreateAnimationDataFromLayer_Change : Change
+{
+    private readonly Guid layerGuid;
+
+    [GenerateMakeChangeAction]
+    public CreateAnimationDataFromLayer_Change(Guid layerGuid)
+    {
+        this.layerGuid = layerGuid;
+    }
+
+    public override bool InitializeAndValidate(Document target)
+    {
+        return target.TryFindMember<LayerNode>(layerGuid, out LayerNode? layer) && layer.KeyFrames != null &&
+               layer.KeyFrames.Count != 0;
+    }
+
+    public override OneOf<None, IChangeInfo, List<IChangeInfo>> Apply(Document target, bool firstApply,
+        out bool ignoreInUndo)
+    {
+        LayerNode layer = target.FindNode(layerGuid) as LayerNode;
+        List<IChangeInfo> infos = new List<IChangeInfo>();
+        foreach (var frame in layer.KeyFrames)
+        {
+            Guid keyFrameId = Guid.NewGuid();
+            target.AnimationData.AddKeyFrame(new RasterKeyFrame(keyFrameId, layer.Id, frame.StartFrame, target)
+            {
+                Duration = frame.Duration
+            });
+            infos.Add(new CreateRasterKeyFrame_ChangeInfo(layer.Id, frame.StartFrame, keyFrameId, true));
+        }
+
+        ignoreInUndo = false;
+        return infos;
+    }
+
+    public override OneOf<None, IChangeInfo, List<IChangeInfo>> Revert(Document target)
+    {
+        var layer = target.FindNode(layerGuid) as LayerNode;
+        List<IChangeInfo> infos = new List<IChangeInfo>();
+
+        var keyFrame = target.AnimationData.KeyFrames;
+        var ids = keyFrame.Where(x => x.NodeId == layer.Id).Select(x => x.Id).ToList();
+
+        foreach (var id in ids)
+        {
+            target.AnimationData.RemoveKeyFrame(id);
+            infos.Add(new DeleteKeyFrame_ChangeInfo(id));
+        }
+
+        return infos;
+    }
+}

src/PixiEditor/Models/DocumentModels/Public/DocumentOperationsModule.cs

@@ -211,7 +211,10 @@ internal class DocumentOperationsModule : IDocumentOperations
         bool isFolder = Document.StructureHelper.Find(guidValue) is IFolderHandler;
         if (!isFolder)
         {
-            Internals.ActionAccumulator.AddFinishedActions(new DuplicateLayer_Action(guidValue, Guid.NewGuid()));
+            Guid newGuid = Guid.NewGuid();
+            Internals.ActionAccumulator.AddFinishedActions(
+                new DuplicateLayer_Action(guidValue, newGuid),
+                new CreateAnimationDataFromLayer_Action(newGuid));
         }
         else
         {