--- /dev/null
+\version "2.13.2"
+
+\header {
+ texidoc = "Collision resolution involving dotted harmonic heads
+succeeds when dots are hidden since @code{rhythmic-head-interface}
+will only retrieve @code{'dot-count} from live grobs.
+"
+}
+
+\relative c' {
+ <<
+ { <fis\harmonic>2. }
+ \\
+ { e2. }
+ >>
+ r4
+}