Start scripts in attachments only after a successful attach. Elimininate

a gratuitious asset fetch when region crossing.

OpenSim/Region/ScriptEngine/Interfaces/IScriptInstance.cs

@@ -40,7 +40,7 @@ namespace OpenSim.Region.ScriptEngine.Interfaces
     {
         NewRez = 0,
         PrimCrossing = 1,
-        ScriptedRez= 2
+        ScriptedRez = 2
     }
 
     public interface IScriptWorkItem

OpenSim/Region/ScriptEngine/Shared/CodeTools/Compiler.cs

@@ -286,6 +286,18 @@ namespace OpenSim.Region.ScriptEngine.Shared.CodeTools
                 }
             }
 
+            if (Script == String.Empty)
+            {
+                if (File.Exists(OutFile))
+
+                {
+                    m_scriptEngine.Log.DebugFormat("[Compiler] Returning existing assembly for {0}", asset);
+                    return OutFile;
+                }
+
+                throw new Exception("Cannot find script assembly and no script text present");
+            }
+
             enumCompileType l = DefaultCompileLanguage;
 
             if (Script.StartsWith("//c#", true, CultureInfo.InvariantCulture))