From 5a8a4d6f79f99698d51ed1ada2802a019341d0e1 Mon Sep 17 00:00:00 2001
From: Stefan Weil <sw@weilnetz.de>
Date: Sun, 11 Dec 2022 22:56:23 +0100
Subject: [PATCH] Fix function ReadTrainingSamples (issue #3925)

This fixes duplicate delete when running cntraining.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
---
 src/training/common/commontraining.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/training/common/commontraining.cpp b/src/training/common/commontraining.cpp
index 473cb70b4c..60f3bd64f6 100644
--- a/src/training/common/commontraining.cpp
+++ b/src/training/common/commontraining.cpp
@@ -376,6 +376,7 @@ void ReadTrainingSamples(const FEATURE_DEFS_STRUCT &feature_definitions, const c
       if (feature_type != i) {
         delete char_desc->FeatureSets[i];
       }
+      char_desc->FeatureSets[i] = nullptr;
     }
     delete char_desc;
   }