fix(mapping): use tab split instead of tabedit % to avoid E499

thanks to @zeertzjq

autoload/SpaceVim/mapping/space.vim

@@ -926,7 +926,7 @@ function! s:maximize_minimize_win() abort
     if exists('*win_getid')
       let s:_maximize_previous_winid = win_getid()
     endif
-    tabedit %
+    tab split
     let t:_maximize_previous_win = tabpagenr()
   endif