This public footpath is tagged as highway=bridleway.  Is this a mistake, or is it also a permissive bridleway in addition to being a public footpath, or has it been redesignated as a public bridleway?

https://wiki.openstreetmap.org/wiki/Tag:highway%3Dbridleway
https://wiki.openstreetmap.org/wiki/Tag:designation%3Dpublic_bridleway