Fix tiled clients swapping with non tiling and/or maximized clients

simple/tiling.lua

@@ -53,14 +53,16 @@ local screenRight = function(geo)
     end
 end
 
-local swapClient = function(c, dir, stacked)
+local swapClient = function(c, dir)
     local sel = c or capi.client.focus
     if sel then
-        local cltbl = awful.client.visible(sel.screen, stacked)
+        local cltbl = sel.screen.tiled_clients
         local geomtbl = {}
         for i,cl in ipairs(cltbl) do
+        	if not cl.maximized then
             	geomtbl[i] = cl:geometry()
            	end
+        end
         local target = grect.get_in_direction(dir, geomtbl, sel:geometry())
 
         -- If we found a client to swap with, then go for it