Don't admit purely horizontal spacing into the page layout

Its extents confuse the spacing engine.

diff --git a/lily/constrained-breaking.cc b/lily/constrained-breaking.cc
index 8d3b6967e42a05f37e308e6926a3d532b6c729b7..f8d4b0f5b2280d10ca669a1cb1678b3bdd5dc7ab 100644 (file)
--- a/lily/constrained-breaking.cc
+++ b/lily/constrained-breaking.cc
@@ -572,7 +572,7 @@ Line_details::Line_details (Prob *pb, Output_def *paper)
   last_column_ = 0;
   force_ = 0;
   Stencil *st = unsmob_stencil (pb->get_property ("stencil"));
-  Interval stencil_extent = st->is_empty () ? Interval (0, 0)
+  Interval stencil_extent = st->is_empty (Y_AXIS) ? Interval (0, 0)
     : st->extent (Y_AXIS);
   shape_ = Line_shape (stencil_extent, stencil_extent); // pretend it goes all the way across
   tallness_ = 0;