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-rw-r--r--mesecons_microcontroller/init.lua1
1 files changed, 1 insertions, 0 deletions
diff --git a/mesecons_microcontroller/init.lua b/mesecons_microcontroller/init.lua
index a4c2741..4aa65ad 100644
--- a/mesecons_microcontroller/init.lua
+++ b/mesecons_microcontroller/init.lua
@@ -505,6 +505,7 @@ function yc_command_parsecondition(cond, L, eeprom)
if cond:sub(i+1, i+1) == nil then break end
if s == "=" then
if a==nil then return nil end
+ if b==nil then return nil end
if a == b then buf = "1" end
if a ~= b then buf = "0" end
cond = string.gsub(cond, b..s..a, buf)