Add regression test for mixed clefs and octavations.

diff --git a/input/regression/clef-ottava.ly b/input/regression/clef-ottava.ly
new file mode 100644 (file)
index 0000000..d01e6c9
--- /dev/null
+++ b/input/regression/clef-ottava.ly
@@ -0,0 +1,26 @@
+
+\header
+{
+  texidoc = "Ottava brackets and clefs both modify Staff.middleCPosition,
+but they don't confuse one another."
+}
+
+\version "2.11.36"
+
+\layout { ragged-right = ##t} 
+
+\relative c''  {
+  \clef "alto"
+  a b c a
+  #(set-octavation 1)
+  a b c a
+  \clef "bass"
+  a b c a
+  #(set-octavation 2)
+  a b c a
+  \clef "treble"
+  #(set-octavation -1)
+  a b c a
+}
+
+