The 0.4.9 line's port of v0.7.2, minus Gitea#18: the Division map redraw is a
multiplayer redesign and does not belong in a build people are mid-playtest on.
Gitea#17 — a 45° leg is an end of the west-to-east row, so backing into a cut
through a curve's south leg no longer couples it back to front, and a crew
pulling out through a leg takes its own cut with it.
Gitea#14 — every count is docs/Deck cards5.xlsx, including removing the Q12
office doubling and the Gap 12 industry tripling.
Gitea#15 — RAR reversed it: the placement is legal; what must hold is that no
train crosses the gap.
Gitea#3 — the printed speeds are scenery. One Stage per printed region, and
where a train starts is what varies.