Some vehicle bugfixes (#11692)

Content.Shared/Movement/Systems/SharedJetpackSystem.cs

@@ -6,7 +6,6 @@ using Content.Shared.Movement.Events;
 using Content.Shared.Popups;
 using Robust.Shared.Containers;
 using Robust.Shared.GameStates;
-using Robust.Shared.Map;
 using Robust.Shared.Network;
 using Robust.Shared.Player;
 using Robust.Shared.Serialization;
@@ -22,6 +21,7 @@ public abstract class SharedJetpackSystem : EntitySystem
     [Dependency] protected readonly SharedAppearanceSystem Appearance = default!;
     [Dependency] protected readonly SharedContainerSystem Container = default!;
     [Dependency] private readonly SharedPopupSystem _popups = default!;
+    [Dependency] private readonly SharedMoverController _mover = default!;
 
     public override void Initialize()
     {
@@ -102,7 +102,7 @@ public abstract class SharedJetpackSystem : EntitySystem
     {
         var user = EnsureComp<JetpackUserComponent>(uid);
         var relay = EnsureComp<RelayInputMoverComponent>(uid);
-        relay.RelayEntity = component.Owner;
+        _mover.SetRelay(uid, component.Owner, relay);
         user.Jetpack = component.Owner;
     }
 

Content.Shared/Movement/Systems/SharedMoverController.Relay.cs

@@ -13,6 +13,19 @@ public abstract partial class SharedMoverController
         SubscribeLocalEvent<RelayInputMoverComponent, ComponentShutdown>(OnRelayShutdown);
     }
 
+    /// <summary>
+    ///     Sets the relay entity and marks the component as dirty. This only exists because people have previously
+    ///     forgotten to Dirty(), so fuck you, you have to use this method now.
+    /// </summary>
+    public void SetRelay(EntityUid uid, EntityUid relayEntity, RelayInputMoverComponent? component = null)
+    {
+        if (!Resolve(uid, ref component))
+            return;
+
+        component.RelayEntity = relayEntity;
+        Dirty(component);
+    }
+
     private void OnRelayShutdown(EntityUid uid, RelayInputMoverComponent component, ComponentShutdown args)
     {
         // If relay is removed then cancel all inputs.