When requesting a page that is ISO-8859-1 encoded, HTML is still interpreted as UTF-8

When requesting a page that is ISO-8859-1 encoded:

>>> r = session.get('https://gerda.geus.dk/Gerda/Search')
>>> r.encoding
'ISO-8859-1'
>>> r.html.default_encoding
'ISO-8859-1'
>>> r.html.encoding
'utf8'
>>> r.html.find("option")[-1].text
'Bygge-anl�g'

Expected behavior:

>>> r.html.find("option")[-1].text
'Bygge-anlæg'

As far as I can see, there are two problems:

• r.html.encoding is incorrectly set
• r.html.element (The PyQuery instance) does not take encoding into account at all but just assumes utf-8