From 6dde8c7f0d80527ad9ffaa6df495ae6ad7056288 Mon Sep 17 00:00:00 2001
From: "Joachim Wuttke (h)" <j.wuttke@fz-juelich.de>
Date: Thu, 9 Nov 2023 09:07:44 +0100
Subject: [PATCH] comment -> issue #820

---
 Device/Detector/Detector2D.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Device/Detector/Detector2D.cpp b/Device/Detector/Detector2D.cpp
index 84c5ae414be..2a3e6abe7ef 100644
--- a/Device/Detector/Detector2D.cpp
+++ b/Device/Detector/Detector2D.cpp
@@ -65,7 +65,7 @@ size_t Detector2D::indexOfSpecular(const Beam& beam) const
     double alpha = beam.alpha_i();
     double phi = beam.phi_i();
     if (alpha + phi < 0)
-        return -1;
+        return -1; // issue #820
     // return getGlobalIndex(
     return totalSize();
 }
-- 
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