From f9f3643ce3447c431ee266ff241cad393872d416 Mon Sep 17 00:00:00 2001
From: H.G.Muller <hgm@hgm-xboard.(none)>
Date: Sun, 15 Feb 2015 23:17:29 +0100
Subject: [PATCH] Fix click-click sweep-select

If the up-click of the second click of a sweep-select would occur in the
from-square, the whole move would be ignored, and de-select the promoting
piece instead.
---
 backend.c |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/backend.c b/backend.c
index 4974fed..71a795c 100644
--- a/backend.c
+++ b/backend.c
@@ -7574,7 +7574,7 @@ printf("A type=%d\n",clickType);
 	return;
     }
 
-    if (clickType == Release && x == fromX && y == fromY && killX < 0) {
+    if (clickType == Release && x == fromX && y == fromY && killX < 0 && !sweepSelecting) {
 	DragPieceEnd(xPix, yPix); dragging = 0;
 	if(clearFlag) {
 	    // a deferred attempt to click-click move an empty square on top of a piece
@@ -7588,10 +7588,9 @@ printf("A type=%d\n",clickType);
 	    /* Undo animation damage if any */
 	    DrawPosition(FALSE, NULL);
 	}
-	if (second || sweepSelecting) {
+	if (second) {
 	    /* Second up/down in same square; just abort move */
-	    if(sweepSelecting) DrawPosition(FALSE, boards[currentMove]);
-	    second = sweepSelecting = 0;
+	    second = 0;
 	    fromX = fromY = -1;
 	    gatingPiece = EmptySquare;
 	    MarkTargetSquares(1);
-- 
1.7.0.4