From 1b529666e6ecea1f9693172a4b3613bb414109cd Mon Sep 17 00:00:00 2001
From: VMSolidus <evilexecutive@gmail.com>
Date: Sat, 9 Nov 2024 15:37:43 -0500
Subject: [PATCH] Cherry-Pick Wizden PR 28375 (#1191)

# Description

Cherry-picks
https://github.com/space-wizards/space-station-14/pull/28375/ to fix an
issue with BUIs closing themselves.

Co-authored-by: metalgearsloth <31366439+metalgearsloth@users.noreply.github.com>
---
 Content.Shared/Interaction/SharedInteractionSystem.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Content.Shared/Interaction/SharedInteractionSystem.cs b/Content.Shared/Interaction/SharedInteractionSystem.cs
index 940d8ffbb0..4c22bcb14e 100644
--- a/Content.Shared/Interaction/SharedInteractionSystem.cs
+++ b/Content.Shared/Interaction/SharedInteractionSystem.cs
@@ -159,7 +159,7 @@ private void OnBoundInterfaceInteractAttempt(BoundUserInterfaceMessageAttempt ev
             if (uiComp == null)
                 return;
 
-            if (uiComp.SingleUser && uiComp.CurrentSingleUser != ev.Actor)
+            if (uiComp.SingleUser && uiComp.CurrentSingleUser != null && uiComp.CurrentSingleUser != ev.Actor)
             {
                 ev.Cancel();
                 return;