Author: Ondřej Nový <onovy@debian.org>
Subject: Fix compatibility with pytest 6

--- a/tests/test_stateful_browser.py
+++ b/tests/test_stateful_browser.py
@@ -258,7 +258,7 @@
     browser, url = setup_mock_browser()
     browser.open_fake_page(submit_form_noaction)
     browser.select_form('#choose-submit-form')
-    with pytest.raises(ValueError, message="no URL to submit to"):
+    with pytest.raises(ValueError):
         browser.submit_selected()