This is typically the kind of mistake a non native English speaker could make and maybe indicative of a more international community.

At least these are "codes" not "cods", as I've seen written in a project I worked with. Real mistake by a French programmer, not a typo. Reasoning: programme->program so code->cod. In French there is no difference in pronunciation, and spell check didn't catch it. This one is obvious and funny, but you can get some weird English when you apply foreign rules to it.