This patch is based on a revert of upstream commit f5ad1ec948e34d88ea188f887171960e29800fa7
adapted for use in the Debian package by Peter Michael Green.

Index: ammonia/src/lib.rs
===================================================================
--- ammonia.orig/src/lib.rs
+++ ammonia/src/lib.rs
@@ -38,7 +38,7 @@ mod style;
 use html5ever::interface::Attribute;
 use html5ever::serialize::{serialize, SerializeOpts};
 use html5ever::tree_builder::{NodeOrText, TreeSink};
-use html5ever::{driver as html, local_name, ns, QualName};
+use html5ever::{driver as html, local_name, namespace_url, ns, QualName};
 use maplit::{hashmap, hashset};
 use std::sync::LazyLock;
 use rcdom::{Handle, NodeData, RcDom, SerializableHandle};
@@ -2208,7 +2208,6 @@ impl<'a> Builder<'a> {
             html::ParseOpts::default(),
             QualName::new(None, ns!(html), local_name!("div")),
             vec![],
-            false,
         )
     }
 }
Index: ammonia/Cargo.toml
===================================================================
--- ammonia.orig/Cargo.toml
+++ ammonia/Cargo.toml
@@ -53,7 +53,7 @@ path = "tests/version-numbers.rs"
 version = "0.34.0"
 
 [dependencies.html5ever]
-version = "0.35"
+version = "0.31"
 
 [dependencies.maplit]
 version = "1.0"