From 3f8478086db8720c0f4b5066779a55a2d0271260 Mon Sep 17 00:00:00 2001
From: Vanessa Ezekowitz <vanessaezekowitz@gmail.com>
Date: Tue, 11 Apr 2017 13:45:31 +0200
Subject: [PATCH] fix crash in battery mod (missing meta check)

---
 technic/machines/register/battery_box.lua |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/technic/machines/register/battery_box.lua b/technic/machines/register/battery_box.lua
index b0d9180..233e410 100644
--- a/technic/machines/register/battery_box.lua
+++ b/technic/machines/register/battery_box.lua
@@ -253,6 +253,7 @@
 			after_place_node = data.tube and pipeworks.after_place,
 			after_dig_node = technic.machine_after_dig_node,
 			on_receive_fields = function(pos, formname, fields, sender)
+				local meta = minetest.get_meta(pos)
 				local nodename = minetest.get_node(pos).name
 				if fields.edit_channel then
 					minetest.show_formspec(sender:get_player_name(),

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