Fixed very rare occurrence with invtweak's formspec

- Solves #70 and crash on May 30th, 2015, 18h58
2015-05-30 19:09:03 +02:00 · 2015-05-30 19:09:03 +02:00 · 74d0303dc3
parent 59f42c1935
commit 74d0303dc3
1 changed files with 1 additions and 0 deletions
--- a/mods/invtweak/init.lua
+++ b/mods/invtweak/init.lua
@ -15,6 +15,7 @@ tweak.buttons = {
 local function get_formspec_size(formspec)
 	local w = 8
 	local h = 7.5
+	if not formspec then return end
 	local sstring = string.find(formspec,"size[",1,true)
 	if sstring ~= nil then
 		sstring = string.sub(formspec, sstring+5)