Fix RCD exception when being used in spess.

This does not fix the actual functionality, it just checks whether the click location is not space. This needs to be fixed in the future to work in space.

Content.Server/GameObjects/Components/Items/RCD/RCDComponent.cs

@@ -96,6 +96,10 @@ namespace Content.Server.GameObjects.Components.Items.RCD
 
         async Task<bool> IAfterInteract.AfterInteract(AfterInteractEventArgs   eventArgs)
         {
+            // FIXME: Make this work properly. Right now it relies on the click location being on a grid, which is bad.
+            if (!eventArgs.ClickLocation.IsValid(Owner.EntityManager) || !eventArgs.ClickLocation.GetGridId(Owner.EntityManager).IsValid())
+                return false;
+
             //No changing mode mid-RCD
             var startingMode = _mode;