Comment by masklinn

If people actually abuse git branches being CS, odds are good they're also abusing CS in the repository content.

The linux kernel is one of the offenders, if you check it out on Windows or macOS (which supports CS but remains CI by default) you'll immediately get garbage in netfilter, because it's an habitual user of having different files with names identical but for the casing e.g. xt_TCPMSS.h and xt_tcpmss.h.