(sweep_weak_table): Advance prev pointer when we keep a pair.

diff --git a/src/fns.c b/src/fns.c
index 3f92a0e0bfbcb3a03bb8f279b00fcff720ad5a7e..9a3121a3391f7c75bcb4b315d61ca4d7ae6b65ed 100644 (file)
--- a/src/fns.c
+++ b/src/fns.c
@@ -4836,6 +4836,10 @@ sweep_weak_table (h, remove_entries_p)
 
                  h->count = make_number (XFASTINT (h->count) - 1);
                }
+             else
+               {
+                 prev = idx;
+               }
            }
          else
            {