From bea0f4d18b98d52565d4c03fee2a0f1d4d4ef943 Mon Sep 17 00:00:00 2001
From: UbitUmarov <ajlduarte@sapo.pt>
Date: Fri, 1 Apr 2022 22:58:30 +0100
Subject: [PATCH] terrain bug fix: setfalse does not mean write true

---
 OpenSim/Region/CoreModules/World/Terrain/TerrainModule.cs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/OpenSim/Region/CoreModules/World/Terrain/TerrainModule.cs b/OpenSim/Region/CoreModules/World/Terrain/TerrainModule.cs
index 9f6b0b1570..1c664d2c1f 100755
--- a/OpenSim/Region/CoreModules/World/Terrain/TerrainModule.cs
+++ b/OpenSim/Region/CoreModules/World/Terrain/TerrainModule.cs
@@ -191,12 +191,14 @@ namespace OpenSim.Region.CoreModules.World.Terrain
             [System.Runtime.CompilerServices.MethodImpl(System.Runtime.CompilerServices.MethodImplOptions.AggressiveInlining)]
             public void SetFalseByPatch(int indx)
             {
-                taints.Set(indx, true);
+                taints.Set(indx, false);
             }
 
             public void SetAll(bool state)
             {
                 taints.SetAll(state);
+                if(state)
+                    sendAll = true;
                 sendAllcurrentX = 0;
                 sendAllcurrentY = 0;
             }
@@ -1329,7 +1331,7 @@ namespace OpenSim.Region.CoreModules.World.Terrain
                         distxsq *= distxsq;
                         if (distxsq < distlimitsq)
                         {
-                            pups.SetFalseByPatch(x + py);
+                            pups.SetFalseByPatch(indx);
                             ret.Add(new PatchesToSend(x, y, distxsq + distysq));
                             if (npatchs++ > 1024)
                             {