ChemMaster/Chemistry Dispenser constructability, fixed edition (#5125)

Content.Server/Containers/EmptyOnMachineDeconstructComponent.cs

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+using System;
+using System.Collections.Generic;
+using Robust.Shared.Containers;
+using Robust.Shared.GameObjects;
+using Robust.Shared.Serialization.Manager.Attributes;
+using Robust.Shared.ViewVariables;
+
+namespace Content.Server.Containers
+{
+    /// <summary>
+    /// Empties a list of containers when the machine is deconstructed via MachineDeconstructedEvent.
+    /// </summary>
+    [RegisterComponent]
+    public class EmptyOnMachineDeconstructComponent : Component
+    {
+        public override string Name => "EmptyOnMachineDeconstruct";
+
+        [ViewVariables]
+        [DataField("containers")]
+        public HashSet<string> Containers { get; set; } = new();
+    }
+}