vim-patch:8.0.1498: getjumplist() returns duplicate entries

Problem:    Getjumplist() returns duplicate entries. (lacygoill)
Solution:   Call cleanup_jumplist(). (Yegappan Lakshmanan)
a7e18d237f

src/nvim/shada.c

@@ -2739,7 +2739,7 @@ static ShaDaWriteResult shada_write(ShaDaWriteDef *const sd_writer,
 
   // Initialize jump list
   const void *jump_iter = NULL;
-  cleanup_jumplist();
+  cleanup_jumplist(curwin);
   setpcmark();
   do {
     xfmark_T fm;