diff --git a/CHANGES.md b/CHANGES.md
index be1f0eaa..188fa925 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,4 +1,9 @@
-### 3.30.1 (2023-10-02 22:50:00 UTC)
+### 3.31.0 (2023-1x-xx xx:xx:00 UTC)
+
+* Update Beautiful Soup 4.12.2 to 4.12.2 (30c58a1)
+
+
+### 3.30.1 (2023-10-02 22:50:00 UTC)
 
 * Change allow Python 3.12.0 and 3.11.6
 
diff --git a/lib/bs4/builder/_htmlparser.py b/lib/bs4/builder/_htmlparser.py
index 4c5ced93..59911043 100644
--- a/lib/bs4/builder/_htmlparser.py
+++ b/lib/bs4/builder/_htmlparser.py
@@ -378,10 +378,10 @@ class HTMLParserTreeBuilder(HTMLTreeBuilder):
         parser.soup = self.soup
         try:
             parser.feed(markup)
+            parser.close()
         except AssertionError as e:
             # html.parser raises AssertionError in rare cases to
             # indicate a fatal problem with the markup, especially
             # when there's an error in the doctype declaration.
             raise ParserRejectedMarkup(e)
-        parser.close()
         parser.already_closed_empty_element = []
diff --git a/lib/bs4/element.py b/lib/bs4/element.py
index 99fc8137..38ca2dc2 100644
--- a/lib/bs4/element.py
+++ b/lib/bs4/element.py
@@ -1356,7 +1356,7 @@ class Tag(PageElement):
         This is the first step in the deepcopy process.
         """
         clone = type(self)(
-            None, self.builder, self.name, self.namespace,
+            None, None, self.name, self.namespace,
             self.prefix, self.attrs, is_xml=self._is_xml,
             sourceline=self.sourceline, sourcepos=self.sourcepos,
             can_be_empty_element=self.can_be_empty_element,
@@ -1845,6 +1845,11 @@ class Tag(PageElement):
         return space_before + s + space_after
 
     def _format_tag(self, eventual_encoding, formatter, opening):
+        if self.hidden:
+            # A hidden tag is invisible, although its contents
+            # are visible.
+            return ''
+
         # A tag starts with the < character (see below).
 
         # Then the / character, if this is a closing tag.