Try fix collision mispredicts (#16298)

Content.Shared/Movement/Components/MovementRelayTargetComponent.cs

@@ -1,17 +1,15 @@
+using Content.Shared.Movement.Systems;
 using Robust.Shared.GameStates;
 
 namespace Content.Shared.Movement.Components;
 
-[RegisterComponent, NetworkedComponent]
-public sealed class MovementRelayTargetComponent : Component
+[RegisterComponent, NetworkedComponent, AutoGenerateComponentState(true)]
+[Access(typeof(SharedMoverController))]
+public sealed partial class MovementRelayTargetComponent : Component
 {
-    // This really shouldn't be a list at the moment. Its just not supported.
-    // Neither movement updating, nor HandleDirChange() support more than one mover.
-    // Its currently possible for the direction to be set by one mover and the relative rotation to be set by a separate unrelated mover.
-    // AAAAA
-
     /// <summary>
-    /// Entities that are relaying to us.
+    /// The entity that is relaying to this entity.
     /// </summary>
-    [ViewVariables] public readonly List<EntityUid> Entities = new();
+    [ViewVariables, AutoNetworkedField]
+    public EntityUid Source;
 }