--- a/cubicweb/devtools/__init__.py	Fri Mar 10 12:07:29 2017 +0100
+++ b/cubicweb/devtools/__init__.py	Fri Mar 10 18:24:40 2017 +0100
@@ -108,7 +108,6 @@
     * system source is shutdown
     """
     if not repo._needs_refresh:
-        repo.close_sessions()
         for cnxset in repo.cnxsets:
             cnxset.close(True)
         repo.system_source.shutdown()