Bug with New TechLevel in Builder

in the file   components/builder_replica.lua  line 237
"if recipe.level[v] > (bonus ~= nil and bonus:value() or 0) then"

and the file components/builder.lua  line 655

if a mod add a new techlevel and not fix all the recipes ,it will creah because of  recipe.level[v] is nil 

to fix this，it only need edit builder_replica.lua line 237 and builder.lua line 655 ,

eg. 

if (recipe.level[v] or 0)> (bonus ~= nil and bonus:value() or 0) then