From c7f1f5eb2ee71d7799b110f702c650a00b1cd4fa Mon Sep 17 00:00:00 2001
From: Petros Koutsolampros <orange-vertex@users.noreply.github.com>
Date: Mon, 19 Aug 2019 13:48:32 +0100
Subject: [PATCH] Only unmerge merged pixels

---
 salalib/pointdata.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/salalib/pointdata.cpp b/salalib/pointdata.cpp
index 400f95a0..cdf588f0 100644
--- a/salalib/pointdata.cpp
+++ b/salalib/pointdata.cpp
@@ -1644,7 +1644,10 @@ bool PointMap::unmergePoints()
    }
    for (auto& sel: m_selection_set) {
       PixelRef a = sel;
-      unmergePixel(a);
+      Point p = getPoint(a);
+      if(p.getMergePixel() != NoPixel) {
+        unmergePixel(a);
+      }
    }
    clearSel();
    return true;