From af24eeb0e91d3735c7a79936ee0986d72dce82ad Mon Sep 17 00:00:00 2001
From: technyon <j.o.schuemann@gmx.de>
Date: Sat, 9 Jul 2022 10:58:49 +0200
Subject: [PATCH] fix potential bug in presence detection

---
 PresenceDetection.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/PresenceDetection.cpp b/PresenceDetection.cpp
index 681bcc0..0c25777 100644
--- a/PresenceDetection.cpp
+++ b/PresenceDetection.cpp
@@ -40,13 +40,15 @@ void PresenceDetection::update()
     delay(3000);
 
     if(_timeout < 0) return;
+    memset(_csv, 0, presence_detection_buffer_size);
+
     if(_devices.size() == 0)
     {
-        _network->publishPresenceDetection(";;");
+        strcpy(_csv, ";;");
+        _network->publishPresenceDetection(_csv);
         return;
     }
 
-    memset(_csv, 0, presence_detection_buffer_size);
     _csvIndex = 0;
     long ts = millis();
     for(auto it : _devices)