findSolid returns Compound that does not contain a Solid

[lorenzncode]

import cadquery as cq

res = (
    cq.Workplane()
    .box(1, 2, 3)
    .section(0)
    .findSolid()
)

res is a Compound (Face). Should the result instead be the Solid on the first parent? See also #1480.