Redstone wire is not rendered on side of glass

Redstone wire is supposed to be placeable on glass in Bedrock Codebase. (See MCPE-16872, which was resolved as WAI.) However, despite the fact that the redstone wire can connect up diagonally like blocks such as cobblestone, wood planks, etc. (and in both directions, unlike slabs), the redstone wire does not appear to travel up the side of the glass.