diff -r 0558866957fa -r f697af015683 mercurial/streamclone.py
--- a/mercurial/streamclone.py	Sat May 20 01:17:27 2023 +0200
+++ b/mercurial/streamclone.py	Sat May 20 01:19:26 2023 +0200
@@ -73,6 +73,10 @@
     if len(repo):
         return False, None
 
+    # Streaming clone only works if all data is being requested.
+    if pullop.heads:
+        return False, None
+
     bundle2supported = False
     if pullop.canusebundle2:
         if b'v2' in pullop.remotebundle2caps.get(b'stream', []):
@@ -88,10 +92,6 @@
     elif bundle2 and not bundle2supported:
         return False, None
 
-    # Streaming clone only works if all data is being requested.
-    if pullop.heads:
-        return False, None
-
     streamrequested = pullop.streamclonerequested
 
     # If we don't have a preference, let the server decide for us. This