From 7397fe16eea48ed2bac08804edb7121b113a534f Mon Sep 17 00:00:00 2001
From: rudolfkoenig <rudolfkoenig@2b470e98-0d58-463d-a4d8-8e2adae1ed80>
Date: Mon, 10 Sep 2018 13:07:04 +0000
Subject: [PATCH] fhem.pl: fix oldreadings issue with 0 value (Forum #91003)

git-svn-id: https://svn.fhem.de/fhem/trunk@17316 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 fhem/fhem.pl | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fhem/fhem.pl b/fhem/fhem.pl
index 63e0a1ea8..7a9ad2159 100755
--- a/fhem/fhem.pl
+++ b/fhem/fhem.pl
@@ -4376,9 +4376,9 @@ setReadingsVal($$$$)
 {
   my ($hash,$rname,$val,$ts) = @_;
 
-  if( $hash->{".or"} && grep($rname =~ m/^$_$/, @{$hash->{".or"}}) ) {
-    if( $hash->{READINGS}{$rname} && 
-        $hash->{READINGS}{$rname}{VAL} &&
+  if($hash->{".or"} && grep($rname =~ m/^$_$/, @{$hash->{".or"}}) ) {
+    if(defined($hash->{READINGS}{$rname}) && 
+       defined($hash->{READINGS}{$rname}{VAL}) &&
         $hash->{READINGS}{$rname}{VAL} ne $val ) {
       $hash->{OLDREADINGS}{$rname}{VAL} = $hash->{READINGS}{$rname}{VAL};
       $hash->{OLDREADINGS}{$rname}{TIME} = $hash->{READINGS}{$rname}{TIME};