diff -r bd3b6f363fb9 -r 511106bcb16c tests/test-sparse-revlog.t
--- a/tests/test-sparse-revlog.t	Mon Nov 07 14:24:52 2022 -0500
+++ b/tests/test-sparse-revlog.t	Mon Nov 07 14:38:52 2022 -0500
@@ -105,11 +105,11 @@
                      delta :        0 (100.00%)
       snapshot  :      383 ( 7.66%)
         lvl-0   :              3 ( 0.06%)
-        lvl-1   :             18 ( 0.36%)
-        lvl-2   :             62 ( 1.24%)
-        lvl-3   :            108 ( 2.16%)
-        lvl-4   :            191 ( 3.82%)
-        lvl-5   :              1 ( 0.02%)
+        lvl-1   :             18 ( 0.36%)  non-ancestor-bases:        9 (50.00%)
+        lvl-2   :             62 ( 1.24%)  non-ancestor-bases:       58 (93.55%)
+        lvl-3   :            108 ( 2.16%)  non-ancestor-bases:      108 (100.00%)
+        lvl-4   :            191 ( 3.82%)  non-ancestor-bases:      180 (94.24%)
+        lvl-5   :              1 ( 0.02%)  non-ancestor-bases:        1 (100.00%)
       deltas    :     4618 (92.34%)
   revision size : 58616973
       snapshot  :  9247844 (15.78%)
@@ -144,9 +144,11 @@
   deltas against prev  : 3906 (84.58%)
       where prev = p1  : 3906     (100.00%)
       where prev = p2  :    0     ( 0.00%)
-      other            :    0     ( 0.00%)
+      other-ancestor   :    0     ( 0.00%)
+      unrelated        :    0     ( 0.00%)
   deltas against p1    :  649 (14.05%)
   deltas against p2    :   63 ( 1.36%)
+  deltas against ancs  :    0 ( 0.00%)
   deltas against other :    0 ( 0.00%)