diff --git a/hgext/rebase.py b/hgext/rebase.py
--- a/hgext/rebase.py
+++ b/hgext/rebase.py
@@ -1888,11 +1888,10 @@
                     obsoletenotrebased[srcrev] = succrev
                     break
             else:
-                # If 'srcrev' has a successor in rebase set but none in
-                # destination (which would be catched above), we shall skip it
-                # and its descendants to avoid divergence.
-                if srcrev in extinctrevs or any(s in destmap for s in succrevs):
-                    obsoletewithoutsuccessorindestination.add(srcrev)
+                # If 'srcrev' has no successor in destination (which would be
+                # caught above), we shall skip it and its descendants to
+                # avoid divergence.
+                obsoletewithoutsuccessorindestination.add(srcrev)
 
     return (
         obsoletenotrebased,
diff --git a/tests/test-rebase-obsolete.t b/tests/test-rebase-obsolete.t
--- a/tests/test-rebase-obsolete.t
+++ b/tests/test-rebase-obsolete.t
@@ -943,9 +943,7 @@
   phases: 8 draft
   orphan: 1 changesets
   $ hg rebase -s 10 -d 12
-  abort: this rebase will cause divergences from: 121d9e3bc4c6
-  (to force the rebase please set experimental.evolution.allowdivergence=True)
-  [255]
+  note: not rebasing 10:121d9e3bc4c6 "P" and its descendants as this would cause divergence
   $ hg log -G
   @  14:73568ab6879d bar foo
   |
@@ -1146,14 +1144,13 @@
 By allowing divergence, we can perform the rebase.
 
   $ hg rebase -r 'c'::'f' -d 'x'
-  abort: this rebase will cause divergences from: 76be324c128b
-  (to force the rebase please set experimental.evolution.allowdivergence=True)
-  [255]
+  rebasing 3:a82ac2b38757 "c" (c)
+  note: not rebasing 4:76be324c128b "d" (d) and its descendants as this would cause divergence
+  2 new orphan changesets
   $ hg rebase --config experimental.evolution.allowdivergence=true -r 'c'::'f' -d 'x'
   rebasing 3:a82ac2b38757 "c" (c)
   rebasing 4:76be324c128b "d" (d)
-  rebasing 7:1143e9adc121 "f" (f tip)
-  1 new orphan changesets
+  rebasing 7:1143e9adc121 "f" (f)
   2 new content-divergent changesets
   $ hg log -G -r 'a':: -T instabilities
   o  10:e1744ea07510 f
@@ -1289,18 +1286,16 @@
   o  0:b173517d0057 a
   
   $ hg rebase -d 0 -r 2
-  rebasing 2:a82ac2b38757 "c" (c)
+  note: not rebasing 2:a82ac2b38757 "c" (c) and its descendants as this would cause divergence
   $ hg log -G -r 'a': --hidden
-  o  5:69ad416a4a26 c
+  *  4:76be324c128b d
   |
-  | *  4:76be324c128b d
+  | x  3:ef8a456de8fa c1 (pruned)
   | |
-  | | x  3:ef8a456de8fa c1 (pruned)
-  | | |
-  | x |  2:a82ac2b38757 c (rewritten using replace as 3:ef8a456de8fa rewritten using rebase as 5:69ad416a4a26)
-  | |/
-  | o  1:488e1b7e7341 b
+  x |  2:a82ac2b38757 c (rewritten using replace as 3:ef8a456de8fa)
   |/
+  o  1:488e1b7e7341 b
+  |
   o  0:b173517d0057 a
   
   $ cd ..
@@ -1559,9 +1554,7 @@
   1 new orphan changesets
 
   $ hg rebase -b 'desc("D")' -d 'desc("J")'
-  abort: this rebase will cause divergences from: 112478962961
-  (to force the rebase please set experimental.evolution.allowdivergence=True)
-  [255]
+  note: not rebasing 2:112478962961 "B" (B) and its descendants as this would cause divergence
 
 Rebase merge where both parents have successors in destination