Add regression test for #1056.

diff --git a/input/regression/stem-length-estimation.ly b/input/regression/stem-length-estimation.ly
new file mode 100644 (file)
index 0000000..9714f14
--- /dev/null
+++ b/input/regression/stem-length-estimation.ly
@@ -0,0 +1,20 @@
+\version "2.13.22"\r
+\r
+\header {\r
+  texidoc = "Stems with overridden 'length should not confuse height estimation.\r
+This example should fit snugly on one page.\r
+"\r
+}\r
+\r
+\paper { \r
+  #(set-paper-size "a6")\r
+  tagline = ##f\r
+  between-system-spacing #'padding = #1.20\r
+}   \r
+\r
+\r
+\new Voice {\r
+  \voiceTwo\r
+  \override Staff.Stem #'length = #0\r
+  \repeat unfold 144 a\r
+}\r