Changed CycleFile property to return a copy of the CycleFile stream to avoid...

Changed CycleFile property to return a copy of the CycleFile stream to avoid stream corruption while adding the cycle to the cache

VectoCore/VectoCore/Models/Declaration/Mission.cs

@@ -58,8 +58,28 @@ namespace TUGraz.VectoCore.Models.Declaration
 
 		public Kilogram BodyCurbWeight { get; internal set; }
 
+		private Stream _cycleFile;
+		private object _cycleLock = new object();
 		[JsonIgnore]
-		public Stream CycleFile { get; internal set; }
+		public Stream CycleFile
+		{
+			get
+			{
+				lock (_cycleLock) {
+					var memoryStream = new MemoryStream();
+					_cycleFile.CopyTo(memoryStream);
+					memoryStream.Position = 0;
+					_cycleFile.Seek(0, SeekOrigin.Begin);
+					return memoryStream;
+				}
+			}
+			internal set
+			{
+				lock (_cycleLock) {
+					_cycleFile = value;
+				}
+			}
+		}
 
 		public IList<MissionTrailer> Trailer { get; internal set; }