wall distance does not correct point-connected cells or multi-patch cells

Summary

wall distance models optionally correct wall-connected cells. This includes cells with only a point on the boundary. This might be broken since 056bb4f0. Additionally will behave differently if patch is split into multiple patches.

Steps to reproduce

• start off from e.g. cavity. Skew mesh a bit.
• make movingWall, fixedWalls type wall
• run checkMesh -writeFields '(wallDistance)' with e.g. meshWave` as wall distance method (in fvSchemes)
• check that corner cells (= on two patches) use both patches i.e. look across patches
• split cells into tets
• any cell with a point but not face on a wall should have different values depending on correctWalls setting

Example case

What is the current bug behaviour?

What is the expected correct behavior?

Relevant logs and/or images

Environment information

• OpenFOAM version : v2406

Possible fixes

1. loops inside cellDistFuncs do not check across patches

2. (From visual inspection) cellDistFuncs::correctBoundaryPointCells checks duplicate baffle behaviour (used in cyclicACMI) but uses incorrect logic. If polyPatch::areaFraction is null the patch is a normal patch. Only if it is set.