diff -r 9ac4e81b9659 -r d815a5997576 mercurial/repair.py
--- a/mercurial/repair.py	Thu Aug 06 21:00:16 2015 -0400
+++ b/mercurial/repair.py	Sat Aug 08 14:50:03 2015 -0700
@@ -173,9 +173,8 @@
                 if troffset == 0:
                     repo.store.markremoved(file)
             tr.close()
-        except: # re-raises
-            tr.abort()
-            raise
+        finally:
+            tr.release()
 
         if saveheads or savebases:
             ui.note(_("adding branch\n"))