Merge branch '4.1.x' into 4.x

CHANGES

@@ -50,6 +50,8 @@ Bugs fixed
   with the HEAD of 3.10
 * #9490: autodoc: Some objects under ``typing`` module are not displayed well
   with the HEAD of 3.10
+* #9436, #9471: autodoc: crashed if ``autodoc_class_signature = "separated"``
+* #9456: html search: html_copy_source can't control the search summaries
 * #9435: linkcheck: Failed to check anchors in github.com
 
 Testing

sphinx/ext/autodoc/__init__.py

@@ -257,6 +257,9 @@ def between(marker: str, what: Sequence[str] = None, keepempty: bool = False,
 # But we define this class here to keep compatibility (see #4538)
 class Options(dict):
     """A dict/attribute hybrid that returns None on nonexisting keys."""
+    def copy(self) -> "Options":
+        return Options(super().copy())
+
     def __getattr__(self, name: str) -> Any:
         try:
             return self[name.replace('_', '-')]
@@ -1445,9 +1448,11 @@ class ClassDocumenter(DocstringSignatureMixin, ModuleLevelDocumenter):  # type:
         super().__init__(*args)
 
         if self.config.autodoc_class_signature == 'separated':
+            self.options = self.options.copy()
+
             # show __init__() method
             if self.options.special_members is None:
-                self.options['special-members'] = {'__new__', '__init__'}
+                self.options['special-members'] = ['__new__', '__init__']
             else:
                 self.options.special_members.append('__new__')
                 self.options.special_members.append('__init__')

sphinx/themes/basic/static/searchtools.js

@@ -276,7 +276,7 @@ var Search = {
           setTimeout(function() {
             displayNextItem();
           }, 5);
-        } else {
+        } else if (DOCUMENTATION_OPTIONS.HAS_SOURCE) {
           $.ajax({url: requestUrl,
                   dataType: "text",
                   complete: function(jqxhr, textstatus) {
@@ -289,6 +289,12 @@ var Search = {
                       displayNextItem();
                     }, 5);
                   }});
+        } else {
+          // no source available, just display title
+          Search.output.append(listItem);
+          setTimeout(function() {
+            displayNextItem();
+          }, 5);
         }
       }
       // search finished, update title and status message