fixup! Prepend all function signatures to docstrings and disable headings

Author: AWhetter

tests/test_docstring_options.cpp

@@ -94,4 +94,16 @@ TEST_SUBMODULE(docstring_options, m) {
         m.def("test_overloaded6", [](const py::none&, const py::none&)->py::none { return py::none(); },
           "Both numbers can be None, and None will be returned.");
     }
+
+    {
+        py::options options;
+        options.disable_section_headings();
+
+        m.def("test_overloaded7", [](int a, int b)->int { return a + b; },
+          "A function which adds two numbers.\n");
+        m.def("test_overloaded7", [](float a, float b)->float { return a + b; },
+          "Internally, a simple addition is performed.");
+        m.def("test_overloaded7", [](const py::none&, const py::none&)->py::none { return py::none(); },
+          "Both numbers can be None, and None will be returned.");
+    }
 }

tests/test_docstring_options.py

@@ -80,3 +80,11 @@ def test_docstring_options():
         "Internally, a simple addition is performed.\n"
         "Both numbers can be None, and None will be returned."
     )
+
+    assert m.test_overloaded7.__doc__ == (
+        "test_overloaded7(*args, **kwargs)\n"
+        "A function which adds two numbers.\n"
+        "\n"
+        "Internally, a simple addition is performed.\n"
+        "Both numbers can be None, and None will be returned."
+    )