diff -r 09735cde6275 -r 5d65e04b6a80 mercurial/changegroup.py
--- a/mercurial/changegroup.py	Mon Oct 19 02:54:12 2020 +0200
+++ b/mercurial/changegroup.py	Tue Oct 20 17:32:45 2020 +0200
@@ -443,7 +443,7 @@
                     # ignored.
                     targetphase = phaseall = phases.draft
             if added:
-                phases.registernew(repo, tr, targetphase, [], revs=added)
+                phases.registernew(repo, tr, targetphase, added)
             if phaseall is not None:
                 phases.advanceboundary(repo, tr, phaseall, cgnodes, revs=added)
                 cgnodes = []