diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
index fc755705ca..3c181080b6 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/OSSL_Api.cs
@@ -2201,7 +2201,7 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
             if(sceneOG.IsAttachment)
                 return;
 
-            if (sceneOG.OwnerID != m_host.OwnerID)
+            if (sceneOG.OwnerID.NotEqual(m_host.OwnerID))
                 return;
 
             // harakiri check
@@ -4249,38 +4249,37 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
         public void ForceAttachToAvatarFromInventory(UUID avatarId, string itemName, int attachmentPoint)
         {
             IAttachmentsModule attachmentsModule = m_ScriptEngine.World.AttachmentsModule;
-
-            if (attachmentsModule == null)
+            if (attachmentsModule is null)
                 return;
 
             InitLSL();
 
             TaskInventoryItem item = m_host.Inventory.GetInventoryItem(itemName);
-
-            if (item == null)
+            if (item is null)
             {
-                m_LSL_Api.llSay(0, string.Format("Could not find object '{0}'", itemName));
+                m_LSL_Api?.llSay(0, string.Format("Could not find object '{0}'", itemName));
                 throw new Exception(String.Format("The inventory item '{0}' could not be found", itemName));
             }
 
             if (item.InvType != (int)InventoryType.Object)
             {
-                // FIXME: Temporary null check for regression tests since they dont' have the infrastructure to set
-                // up the api reference.
-                if (m_LSL_Api != null)
-                   m_LSL_Api.llSay(0, string.Format("Unable to attach, item '{0}' is not an object.", itemName));
-
+                m_LSL_Api?.llSay(0, string.Format("Unable to attach, item '{0}' is not an object.", itemName));
                 throw new Exception(String.Format("The inventory item '{0}' is not an object", itemName));
             }
 
-            ScenePresence sp = World.GetScenePresence(avatarId);
+            if ((item.Flags & (uint)InventoryItemFlags.ObjectHasMultipleItems) != 0)
+            {
+                m_LSL_Api?.llSay(0, string.Format("Unable to attach coalesced object, item '{0}' ", itemName));
+                throw new Exception(String.Format("The inventory item '{0}' is a coalesced object", itemName));
+            }
 
-            if (sp == null)
+            ScenePresence sp = World.GetScenePresence(avatarId);
+            if (sp is null)
                 return;
 
             InventoryItemBase newItem = World.MoveTaskInventoryItem(sp.UUID, UUID.Zero, m_host, item.ItemID, out string message);
 
-            if (newItem == null)
+            if (newItem is null)
             {
                 m_log.ErrorFormat(
                     "[OSSL API]: Could not create user inventory item {0} for {1}, attach point {2} in {3}: {4}",