  The sheaves of conformal blocks and conformal coinvariants of the twisted WZW
model have a factorisation property and are locally free even at the boundary
of the moduli space, where the elliptic KZ equations and the Baxter-Belavin
elliptic r matrix degenerate to the trigonometric KZ equations and the
trigonometric r matrix,o respectively. Etingof's construction of the elliptic
KZ equations is geometrically interpreted.
