Fix regression in section numbering.

Starting with pandoc 3.1.12, unnumbered sections incremented
the section number.

Closes #9516.

1 files changed, 17 insertions, 0 deletions

diff --git a/test/command/9516.md b/test/command/9516.md
new file mode 100644
index 000000000..a719e6078
--- /dev/null
+++ b/test/command/9516.md
@@ -0,0 +1,17 @@
+```
+% pandoc --number-sections
+# One {-}
+
+# Two
+
+# Three {-}
+
+# Four
+^D
+<h1 class="unnumbered" id="one">One</h1>
+<h1 data-number="1" id="two"><span
+class="header-section-number">1</span> Two</h1>
+<h1 class="unnumbered" id="three">Three</h1>
+<h1 data-number="2" id="four"><span
+class="header-section-number">2</span> Four</h1>
+```