diff -Nru reposurgeon-3.28/reposurgeon reposurgeon-3.28-new/reposurgeon
--- reposurgeon-3.28/reposurgeon	2015-07-05 15:17:13.000000000 -0400
+++ reposurgeon-3.28-new/reposurgeon	2015-08-25 18:23:11.347591137 -0400
@@ -193,7 +193,7 @@
         importer=b"git fast-import --quiet",
         checkout=b"git checkout",
         lister=b"git ls-files",
-        preserve=(b'.git/config', b'.git/hooks'),
+        preserve=set((b'.git/config', b'.git/hooks')),
         authormap=b".git/cvs-authors",
         ignorename=b".gitignore",
         dfltignores=b"",	# Has none