--- a/mercurial/exchange.py	Sat May 20 01:39:13 2023 +0200
+++ b/mercurial/exchange.py	Fri May 19 14:49:50 2023 +0200
@@ -2421,7 +2421,7 @@
     return info, bundler.getchunks()
 
 
-@getbundle2partsgenerator(b'stream2')
+@getbundle2partsgenerator(b'stream')
 def _getbundlestream2(bundler, repo, *args, **kwargs):
     return bundle2.addpartbundlestream2(bundler, repo, **kwargs)