vim-patch:8.1.0892: failure when closing a window when location list is in use

Problem:    Failure when closing a window when location list is in use.
Solution:   Handle the situation gracefully. Make sure memory for 'switchbuf'
            is not freed at the wrong time. (Yegappan Lakshmanan,
            closes vim/vim#3928)
eeb1b9c7ed

src/nvim/eval.c

@@ -6436,7 +6436,7 @@ win_T *find_win_by_nr_or_id(typval_T *vp)
   int nr = (int)tv_get_number_chk(vp, NULL);
 
   if (nr >= LOWEST_WIN_ID) {
-    return win_id2wp(vp);
+    return win_id2wp(tv_get_number(vp));
   }
 
   return find_win_by_nr(vp, NULL);