Hi

I checkout again today, recompiled, and part of the problem is solved, but
not completely.

How to reproduce the bug:

1) emacs -Q

2) in some buffer insert the following text (3 lines of text, each ending
with words endlineN):

longlines longlines longlines longlines longlines longlines longlines
longlines longlines longlines longlines longlines endline1
longlines longlines longlines longlines longlines longlines longlines
longlines endline2
longlines longlines longlines longlines >< endline3

3) M-x longlines-mode

The text becomes 5 lines that looks like
longlines longlines longlines longlines longlines longlines longlines
longlines longlines longlines longlines longlines endline1
longlines longlines longlines longlines longlines longlines longlines
longlines endline2
longlines longlines longlines longlines >< endline3

4) M-x longlines-show-hard-newlines

5) put point between in the middle of >< in last line

6) type UP 2 times and observe that point goes to beginning of 4th line,
strangely

7) type UP again e text behaves normally.

8) now put the point in the end of last line

9) type UP and point strangely goes to beginning of line, and next UPs
always put point ant beginning of lines.

In GNU Emacs 24.0.50.1 (i686-pc-linux-gnu, GTK+ Version 2.24.4)
 of 2011-09-21 on frasson-sam11-u
Windowing system distributor `The X.Org Foundation', version 11.0.11001000
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: pt_BR.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  longlines-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  use-hard-newlines: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
C-y C-y C-y C-y e n d l i n e 3 <return> <left> M-x
l o n g l i n e s - m o <tab> <return> M-x l o n g
l i n e <tab> s h o <tab> <return> <up> <up> <up> <up>
<down> <down> <down> <end> SPC <left> <up> <up> <down>
<right> <left> <up> <up> <down> <up> <up> <up> <up>
<down> <down> <down> <left> <right> <right> <up> <up>
<up> <up> <up> <down> <down> <down> <down> <end> <up>
<up> <up> <up> <up> <up> <down> <down> <down> <down>
<down> M-x s e n d <tab> <tab> <backspace> <backspace>
<backspace> <backspace> b g <backspace> u g <tab> <tab>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> e m
<tab> a <tab> s <tab> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> b u
<tab> <tab> <tab> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
b u g <tab> <tab> C-g <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <menu-bar>
<help-menu> <send-emacs-bug-report> <help-echo> C-g
<up> <up> <up> <up> <S-down> <S-down> <S-down> <S-down>
<S-end> <S-left> <S-right> <S-right> <C-insert> M-x
l o n g l i <tab> s h o <tab> <C-S-left> <C-S-left>
<C-S-left> <C-S-left> <C-insert> C-g <up> <up> <up>
<up> <up> <S-down> <S-down> <S-down> <S-down> <S-end>
C-c <C-insert> <right> <left> <left> <left> <left>
<left> <left> <left> <left> <left> <left> > < SPC <left>
<left> <up> <up> <up> <up> <up> <down> <down> <down>
<down> <up> <up> <up> <up> <up> <down> <down> <down>
<down> <up> <up> <down> <up> <up> a a <backspace> <backspace>
<up> <up> <down> <down> <down> <end> <left> <end> <up>
<up> <up> <down> <down> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo>
<menu-bar> <help-menu> <send-emacs-bug-report>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Mark set [24 times]
Longlines mode enabled
Making completion list... [3 times]
Quit [2 times]
Mark set
Quit
Mark set

Load-path shadows:
None found.

Features:
(shadow sort gnus-util mail-extr message format-spec rfc822 mml mml-sec
mm-decode mm-bodies mm-encode mail-parse rfc2231 rfc2047 rfc2045
ietf-drums mm-util mail-prsvr mailabbrev mail-utils gmm-utils mailheader
emacsbug help-mode easymenu view longlines time-date tooltip ediff-hook
vc-hooks lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image
fringe lisp-mode register page menu-bar rfn-eshadow timer select
scroll-bar mouse jit-lock font-lock syntax facemenu font-core frame cham
georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
korean japanese hebrew greek romanian slovak czech european ethiopic
indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple
abbrev minibuffer loaddefs button faces cus-face files text-properties
overlay sha1 md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote make-network-process dynamic-setting
system-font-setting font-render-setting move-toolbar gtk x-toolkit x
multi-tty emacs)


-- 
Miguel Vinicius Santini Frasson
mvsfrasson@gmail.com