# HG changeset patch
# User Samu <dj_samu@hotmail.com>
# Date 2020-01-17 19:58:07
# Node ID 6a59e91030f94bca374b9466f817fe9123b615a4
# Parent  ca91ecc08a98467a40daef41e88d3cbf280023fd

Fix #7944: Demolishing locks built on rivers didn't always restore the river

diff --git a/src/water_cmd.cpp b/src/water_cmd.cpp
--- a/src/water_cmd.cpp
+++ b/src/water_cmd.cpp
@@ -301,7 +301,7 @@ static CommandCost DoBuildLock(TileIndex
 	if (ret.Failed()) return ret;
 
 	/* middle tile */
-	WaterClass wc_middle = IsWaterTile(tile) ? GetWaterClass(tile) : WATER_CLASS_CANAL;
+	WaterClass wc_middle = HasTileWaterGround(tile) ? GetWaterClass(tile) : WATER_CLASS_CANAL;
 	ret = DoCommand(tile, 0, 0, flags, CMD_LANDSCAPE_CLEAR);
 	if (ret.Failed()) return ret;
 	cost.AddCost(ret);