Finally make attachments stay put. Randomize local ID generation to

prevent adjacent sims from using identical Local IDs for the attachment
Thanks to Mana Janus (Hippo Viewer) for providing the crucial bit of
information, namely that, due to a bug in the viewer, adjacent sims can't
use the same local ids.

1 files changed, 6 insertions, 1 deletions

diff --git a/OpenSim/Region/Environment/Modules/World/Land/LandManagementModule.cs b/OpenSim/Region/Environment/Modules/World/Land/LandManagementModule.cs
index 68aee86..0c4e6db 100644
--- a/OpenSim/Region/Environment/Modules/World/Land/LandManagementModule.cs
+++ b/OpenSim/Region/Environment/Modules/World/Land/LandManagementModule.cs
@@ -556,7 +556,12 @@ namespace OpenSim.Region.Environment.Modules.World.Land
             }
             lock (m_landList)
             {
-                return m_landList[m_landIDList[x, y]];
+                // Corner case. If an autoreturn happens during sim startup
+                // we will come here with the list uninitialized
+                //
+                if (m_landList.ContainsKey(m_landIDList[x, y]))
+                    return m_landList[m_landIDList[x, y]];
+                return null;
             }
         }