Bugfix: In zoom mode menu selection we need to redraw the screen even if the selected mode is the same as the current one,

otherwise it gives an impression that the program hangs (unless the user presses Next page or does anything else that causes
screen refresh, e.g. manual screen refresh).

unireader.lua

@@ -2123,11 +2123,11 @@ function UniReader:addAllCommands()
 				current_entry = - unireader.globalzoom_mode
 				}
 			local re = zoom_menu:choose(0, G_height)
-			if not re or re==1 or re==8 or re==9 then -- if not proper zoom-mode
-				unireader:redrawCurrentPage()
-			else
+			if re and re ~= 1 and re ~= 8 and re ~= 9 then -- if proper zoom-mode
+				Debug("setting zoom mode re=" .. re)
 				unireader:setglobalzoom_mode(1-re)
 			end
+			unireader:redrawCurrentPage()
 		end)
 	-- to leave or to erase 8 hotkeys switching zoom-mode directly?