Browser regression regarding quoting

Continuing the discussion from [Release notes] Suomenlinna 4.3.0:

Version
4.3.0.12

Regression
Yes

Description
The native browser lost (again) the functionality of answering with quoting a selected text.

Expected
select text,
press appearing ‘Quote’ button
find a new answer box opened to type in

Actual
nothing happens pressing the appearing ‘Quote’ button