Thanks for fixing this. PSV gets misused a lot as a synonym for bus+taxi, but doesn't mean that in the UK.

I've made a few other tweaks, as that section of Station Road/Poplar Road had acquired some "interesting" tagging over the last 10 years. Some of it may have made sense at the time, others like highway=living_street look a lot like tagging for the renderer. This shouldn't have any impact on you as bus=yes is still there, but please let me know if you notice any problems.
https://www.openstreetmap.org/changeset/164891122