Fix test that had a decreasing write version

test_conflict_set.py

@@ -73,7 +73,7 @@ def test_internal_version_zero():
             cs.addWrites(0xFFFFFFF1, write(bytes([i])))
         for i in range(256 - 25, 256):
             cs.addWrites(0xFFFFFFF1, write(bytes([i])))
-        cs.addWrites(0, write(b"\xff"))
+        cs.addWrites(0x100000000, write(b"\xff"))
         cs.check(read(0xFFFFFFF1, b"\x00", b"\xff"))