XML element with special characters can be created, serialized, but not deserialized

Hello,

I am using PostgreSQL 13.8 and I think that I found an issue with XML
serialization and deserialization.

A text that has special characters cannot be converted to XML even if it
was created by serializing an XML element.

In our case a string contains a special character with the ASCII code 19,
placed between the letters i and p.
The simple statement that serializes an XML element works.
select xmlelement(name "street",'i p')::text

When the same text has to be converted back to XML. it fails with an error

select xmlelement(name "street",'i p')::text::xml

The error message is

SQL Error [2200N]: ERROR: invalid XML content
Detail: line 1: PCDATA invalid Char value 19
<street>i p</street>
^
line 1: chunk is not well balanced
<street>i p</street>
^

The expected behaviour would be to successfully parse an XML element that
was created and serialized by the same engine.

Best regards,
--
Serghei Ignat