Fix move_to_screen in AwesomeWM v4.3

patch.lua

function smart_move_to_screen(c, dir)
   local was_maximized = { h = false, v = false }
   if c.maximized_horizontal then
      c.maximized_horizontal = false
      was_maximized.h = true
   end
   if c.maximized_vertical then
      c.maximized_vertical = false
      was_maximized.v = true
   end

   local sel = c or client.focus
   if sel then
      local sc = screen.count()
      s = sel.screen.index + dir
      if s > sc then s = 1 elseif s < 1 then s = sc end
      sel:move_to_screen(s)
      mouse.coords(screen[s].geometry)
   end

   if was_maximized.h then
      c.maximized_horizontal = true
   end
   if was_maximized.v then
      c.maximized_vertical = true
   end
end

-- ........
clientkeys = awful.util.table.join(
-- ........
    awful.key({ modkey,           }, "o",      function (c) smart_move_to_screen(c,  1)        end,
              {description = "move to screen", group = "client"}),
    awful.key({ modkey, "Shift"   }, "o",      function (c) smart_move_to_screen(c, -1)        end,
-- ........