From 843c68af145cd5a24eabc5ac89ecc81423ad3024 Mon Sep 17 00:00:00 2001
From: Jeija <jeija@mesecons.net>
Date: Thu, 24 Apr 2014 10:59:16 +0200
Subject: Fix channel value getting deleted when quitting without editing the
 value in LCD, RTC and Light Sensor

---
 digilines_rtc/init.lua | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'digilines_rtc/init.lua')

diff --git a/digilines_rtc/init.lua b/digilines_rtc/init.lua
index 40e84d0..6b7bfaf 100644
--- a/digilines_rtc/init.lua
+++ b/digilines_rtc/init.lua
@@ -46,8 +46,8 @@ minetest.register_node("digilines_rtc:rtc", {
 		meta:set_string("formspec", "field[channel;Channel;${channel}]")
 	end,
 	on_receive_fields = function(pos, formname, fields, sender)
-		local meta = minetest.get_meta(pos)
-		fields.channel = fields.channel or ""
-		meta:set_string("channel", fields.channel)
+		if (fields.channel) then
+			minetest.get_meta(pos):set_string("channel", fields.channel)
+		end
 	end,
 })
-- 
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