When a ref crosses a memory page boundary, we restart the parsing
at the beginning with the bytewise code. Pass the original flags
to that code, rather than the current flags.
Reported-By: Øyvind A. Holm <sunny@sunbase.org> Signed-off-by: David Turner <dturner@twitter.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>