Fix off-by-one error in max_system_count.

[lilypond.git] / lily / grob.cc

diff --git a/lily/grob.cc b/lily/grob.cc
index 34b742e7f576c6de8a5a63252312abd56540cf3b..fbb4683f4a7f2173c1d9e70b2afe7d86db73cd20 100644 (file)
--- a/lily/grob.cc
+++ b/lily/grob.cc
@@ -440,7 +440,8 @@ Grob::pure_height (Grob *refp, int start, int end)
   if (!iv.is_empty () && is_number_pair (min_ext))
     iv.unite (ly_scm2interval (min_ext));
 
-  iv.translate (offset);
+  if (!iv.is_empty ())
+    iv.translate (offset);
   return iv;
 }