diff --git a/OpenSim/Framework/Util.cs b/OpenSim/Framework/Util.cs
index 2deb1fb01f..0037f4f4ae 100644
--- a/OpenSim/Framework/Util.cs
+++ b/OpenSim/Framework/Util.cs
@@ -67,6 +67,14 @@ namespace OpenSim.Framework
         FoldedModify = 1 << 1,
         FoldedCopy = 1 << 2,
         FoldedExport = 1 << 3,
+
+        // DO NOT USE THIS FOR NEW WORK. IT IS DEPRECATED AND
+        // EXISTS ONLY TO REACT TO EXISTING OBJECTS HAVING IT.
+        // NEW CODE SHOULD NEVER SET THIS BIT!
+        // Use InventoryItemFlags.ObjectSlamPerm in the Flags field of
+        // this legacy slam bit. It comes from prior incomplete
+        // understanding of the code and the prohibition on
+        // reading viewer code that used to be in place.
         Slam = (1 << 4),
 
         FoldedMask = 0x0f,
diff --git a/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs b/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
index 6fe7e896ff..b37744d8ae 100644
--- a/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
+++ b/OpenSim/Region/CoreModules/Framework/InventoryAccess/InventoryAccessModule.cs
@@ -608,7 +608,7 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
                 
 //                item.BasePermissions = perms & so.RootPart.NextOwnerMask;
                 
-                uint nextp = so.RootPart.NextOwnerMask | 0x0f;
+                uint nextp = so.RootPart.NextOwnerMask | (uint)PermissionMask.FoldedMask;
                 item.BasePermissions = perms & nextp;
                 item.CurrentPermissions = item.BasePermissions;
                 item.NextPermissions = perms & so.RootPart.NextOwnerMask;
@@ -616,7 +616,7 @@ namespace OpenSim.Region.CoreModules.Framework.InventoryAccess
                 item.GroupPermissions = so.RootPart.GroupMask & so.RootPart.NextOwnerMask;
 
                 // apply next owner perms on rez
-                item.CurrentPermissions |= (uint)PermissionMask.Slam;
+                item.Flags |= (uint)InventoryItemFlags.ObjectSlamPerm;
             }
             else
             {
diff --git a/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs b/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
index 0d09cefae2..c1faf21e3a 100644
--- a/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
+++ b/OpenSim/Region/Framework/Scenes/Scene.Inventory.cs
@@ -1258,6 +1258,10 @@ namespace OpenSim.Region.Framework.Scenes
             agentItem.InvType = taskItem.InvType;
             agentItem.Flags = taskItem.Flags;
 
+            // The code below isn't OK. It doesn't account for flags being changed
+            // in the object inventory, so it will break when you do it. That
+            // is the previous behaviour, so no matter at this moment. However, there is a lot
+            // TODO: Fix this after the inventory fixer exists and has beenr run
             if ((part.OwnerID != destAgent) && Permissions.PropagatePermissions())
             {
                 agentItem.BasePermissions = taskItem.BasePermissions & (taskItem.NextPermissions | (uint)PermissionMask.Move);
@@ -1266,7 +1270,7 @@ namespace OpenSim.Region.Framework.Scenes
                 else
                     agentItem.CurrentPermissions = agentItem.BasePermissions & taskItem.CurrentPermissions;
 
-                agentItem.CurrentPermissions = agentItem.BasePermissions;
+                agentItem.BasePermissions = agentItem.CurrentPermissions;
 
                 agentItem.Flags |= (uint)InventoryItemFlags.ObjectSlamPerm;
                 agentItem.Flags &= ~(uint)(InventoryItemFlags.ObjectOverwriteBase | InventoryItemFlags.ObjectOverwriteOwner | InventoryItemFlags.ObjectOverwriteGroup | InventoryItemFlags.ObjectOverwriteEveryone | InventoryItemFlags.ObjectOverwriteNextOwner);
diff --git a/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs b/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
index 02b94ce8b8..bf56de2867 100644
--- a/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
+++ b/OpenSim/Region/Framework/Scenes/SceneObjectPartInventory.cs
@@ -943,8 +943,7 @@ namespace OpenSim.Region.Framework.Scenes
 
                 group.SetGroup(m_part.GroupID, null);
 
-                // TODO: Remove magic number badness
-                if ((rootPart.OwnerID != item.OwnerID) || (item.CurrentPermissions & 16) != 0 || (item.Flags & (uint)InventoryItemFlags.ObjectSlamPerm) != 0) // Magic number
+                if ((rootPart.OwnerID != item.OwnerID) || (item.CurrentPermissions & (uint)PermissionMask.Slam) != 0 || (item.Flags & (uint)InventoryItemFlags.ObjectSlamPerm) != 0)
                 {
                     if (m_part.ParentGroup.Scene.Permissions.PropagatePermissions())
                     {
@@ -964,8 +963,7 @@ namespace OpenSim.Region.Framework.Scenes
 
                 foreach (SceneObjectPart part in partList)
                 {
-                    // TODO: Remove magic number badness
-                    if ((part.OwnerID != item.OwnerID) || (item.CurrentPermissions & 16) != 0 || (item.Flags & (uint)InventoryItemFlags.ObjectSlamPerm) != 0) // Magic number
+                    if ((part.OwnerID != item.OwnerID) || (item.CurrentPermissions & (uint)PermissionMask.Slam) != 0 || (item.Flags & (uint)InventoryItemFlags.ObjectSlamPerm) != 0)
                     {
                         part.LastOwnerID = part.OwnerID;
                         part.OwnerID = item.OwnerID;