The keys F5 F6 F7 and F8 do not emit the correct events in Termion version 4

There's a regression in Termion version 4 compared to version 3. In Termion version 4, the keys F5, F6, F7, and F8 do not emit the Key::F(5)...Key::F(8) events as they should, but instead they emit the following events:

F5 -> Event::Unsupported([27, 91, 49, 53, 126])

F6 -> Event::Unsupported([27, 91, 49, 55, 126])

F7 -> Event::Unsupported([27, 91, 49, 56, 126])

F8 -> Event::Unsupported([27, 91, 49, 57, 126])

Note that in Termion version 3 these keys emit the correct events.

I'm using Linux (Fedora 40) with GNOME Terminal with the $TERM variable set to "xterm-256color".