exchange: do not attempt clone bundle if local repo is non-empty (issue4932)

mercurial/exchange.py

@@ -1658,6 +1658,10 b' def _maybeapplyclonebundle(pullop):'
     if not repo.ui.configbool('experimental', 'clonebundles', False):
         return
 
+    # Only run if local repo is empty.
+    if len(repo):
+        return
+
     if pullop.heads:
         return
 

tests/test-clonebundles.t

@@ -167,12 +167,6 b" Incremental pull doesn't fetch bundle"
   $ cd partial-clone
   $ hg pull
   pulling from http://localhost:$HGPORT/
-  applying clone bundle from http://localhost:$HGPORT1/partial.hg
-  adding changesets
-  adding manifests
-  adding file changes
-  added 0 changesets with 0 changes to 1 files
-  finished applying clone bundle
   searching for changes
   adding changesets
   adding manifests