fix: don't default to uncharged sprite state for cells (#38730)

diff --git a/Content.Client/PowerCell/PowerCellSystem.cs b/Content.Client/PowerCell/PowerCellSystem.cs
index fb40b911d1b775473f8f3a1e4cbd878e9c973f22..8d9dd5ebdd15aaec729b100d8c7f825fdbc17ebb 100644 (file)
--- a/Content.Client/PowerCell/PowerCellSystem.cs
+++ b/Content.Client/PowerCell/PowerCellSystem.cs
@@ -48,8 +48,9 @@ public sealed class PowerCellSystem : SharedPowerCellSystem
         if (!_sprite.LayerExists((uid, args.Sprite), PowerCellVisualLayers.Unshaded))
             return;
 
+        // If no appearance data is set, rely on whatever existing sprite state is set being correct.
         if (!_appearance.TryGetData<byte>(uid, PowerCellVisuals.ChargeLevel, out var level, args.Component))
-            level = 0;
+            return;
 
         var positiveCharge = level > 0;
         _sprite.LayerSetVisible((uid, args.Sprite), PowerCellVisualLayers.Unshaded, positiveCharge);