You did receive credit. A good bug report allows reproducing and ideally fixing the issue - which can involve considerable effort. This is the difference between your report, and the one you linked from 6 years ago.

Like I said, I'd probably have added an additional thanks for that in my commit message - but I'm unfamiliar with the kind of reports this particular subsystem typically receives, so it is quite possible your report is just something average coming in there.

I personally prefer to include code suggesting a fix in my bug reports - but I usually don't expect it to be just merged as I'm not familiar with surrounding code. I also don't expect that to receive an additional mention - it's just part of the report, and is often cleaner in demonstrating the issue than a problem description.