memcpy(ret->facecolours, state->facecolours,
ret->solid->nfaces * sizeof(int));
ret->nsquares = state->nsquares;
+ ret->current = state->current;
ret->squares = snewn(ret->nsquares, struct grid_square);
memcpy(ret->squares, state->squares,
ret->nsquares * sizeof(struct grid_square));