Problem:    Passing limits around too often.
Solution:   Use limits from buffer.

Problem:    Cannot right shift lines starting with #.
Solution:   Allow the right shift when 'cino' contains #N with N > 0.
            (Christian Brabandt)
            Refactor parsing 'cino', store the values in the buffer.

Problem:    After inserting comment leader, CTRL-\ CTRL-O does move the
            cursor. (Wiktor Ruben)
Solution:   Avoid moving the cursor. (Christian Brabandt)

Problem:    Another valgrind error when using CTRL-X CTRL-F at the start of
            the line. (Dominique Pelle)
Solution:   Don't call mb_ptr_back() at the start of the line.  Add a test.

Problem:    Reading before start of a string.
Solution:   Do not call mb_ptr_back() at start of a string. (Dominique Pelle)

Problem:    Compiler warning on 64 bit windows.
Solution:   Add type cast. (Mike Williams)

Problem:    MS-Windows: File name completion doesn't work properly with
            Chinese characters. (Yue Wu)
Solution:   Take care of multi-byte characters when looking for the start of
            the file name. (Ken Takata)

Problem:    When completing item becomes unselected. (Shougo Matsu)
Solution:   Revert patch 7.3.1269.

Problem:    Undo is synced whenever CTRL-R = is called, breaking some plugins.
Solution:   Only break undo when calling setline() or append().

Problem:    CTRL-R = in Insert mode changes the start of the insert position.
            (Ingo Karkat)
Solution:   Only break undo, don't start a new insert.

Problem:    Insert completion keeps entry selected even though the list has
            changed. (Olivier Teuliere)
Solution:   Reset compl_shown_match and compl_curr_match. (Christian Brabandt)

Problem:    Still undo problem after using CTRL-R = setline(). (Hirohito
            Higashi)
Solution:   Set the ins_need_undo flag.

Problem:    When calling setline() from Insert mode, using CTRL-R =, undo does
            not work properly. (Israel Chauca)
Solution:   Sync undo after evaluating the expression. (Christian Brabandt)

Problem:    New regexp engine: Matching plain text could be faster.
Solution:   Detect a plain text match and handle it specifically.  Add
            vim_regfree().

Problem:    Cursor not restored after InsertEnter autocommand if it moved to
            another line.
Solution:   Also restore if the saved line number is still valid.  Allow
            setting v:char to skip restoring.

Problem:    Typos in source files.
Solution:   Fix the typos. (Ken Takata)

Problem:    On some systems case of file names is always ignored, on others
            never.
Solution:   Add the 'fileignorecase' option to control this at runtime.
            Implies 'wildignorecase'.

Problem:    Matchparen does not update match when using auto-indenting.
            (Marc Aldorasi)
Solution:   Add the TextChanged and TextChangedI autocommand events.

Problem:    After using backspace in insert mode completion, CTRL-N and CTRL-P
            do not highlight the right entry. (Olivier Teuliere)
Solution:   Set the current item to the shown item after using backspace.

Problem:    In the terminal the scroll wheel always scrolls the active window.
Solution:   Scroll the window under the mouse pointer, like in the GUI.
            (Bradie Rao)

Problem:    The CompleteDone event is not triggered when there are no pattern
            matches. (Jianjun Mao)
Solution:   Trigger the event. (Christian Brabandt)

Problem:    settabvar() and setwinvar() may move the cursor.
Solution:   Save and restore the cursor position when appropriate. (idea by
            Yasuhiro Matsumoto)

Problem:    Can't make 'softtabstop' follow 'shiftwidth'.
Solution:   When 'softtabstop' is negative use the value of 'shiftwidth'.
            (so8res)

Problem:    Compiler complains about incompatible types.
Solution:   Remove type casts. (hint by Danek Duvall)

Problem:    There is no way to make 'shiftwidth' follow 'tabstop'.
Solution:   When 'shiftwidth' is zero use the value of 'tabstop'. (Christian
            Brabandt)

Problem:    Number argument gets turned into a number while it should be a
            string.
Solution:   Add flag to the call_vim_function() call. (Yasuhiro Matsumoto)

Problem:    Cannot act upon end of completion. (Taro Muraoka)
Solution:   Add an autocommand event that is triggered when completion has
            finished. (Idea by Florian Klein)

Problem:    Calling changed_bytes() too often.
Solution:   Move changed_bytes() out of a loop. (Tor Perkins)

Problem:    Formatting of lists inside comments is not right yet.
Solution:   Use another solution and add a test. (Tor Perkins)

Problem:    Redo after completion does not work correctly when refresh: always
            is not used. (Raymond Ko)
Solution:   Check the compl_opt_refresh_always flag. (Christian Brabandt)

Problem:    Using refresh: always in a complete function breaks the "."
            command. (Val Markovic)
Solution:   Add match leader to the redo buffer. (Yasuhiro Matsumoto)

Problem:    Formatting inside comments does not use the "2" flag in
            'formatoptions'.
Solution:   Support the "2" flag.  (Tor Perkins)

Problem:    When joining lines comment leaders need to be removed manually.
Solution:   Add the 'j' flag to 'formatoptions'. (Lech Lorens)

Problem:    Many #ifdefs for MB_MAXBYTES.
Solution:   Also define MB_MAXBYTES without the +multi_byte feature.  Fix
            places where the buffer didn't include space for a NUL byte.

Problem:    When using an InsertCharPre autocommand autoindent fails.
Solution:   Proper handling of v:char. (Alexey Radkov)

Problem:    When completefunction returns it cannot indicate end of completion
            mode.
Solution:   Recognize completefunction returning -3.  (Mtsushita Shougo)

Problem:    Cannot use CTRL-E and CTRL-Y with "r".
Solution:   Make CTRL-E and CTRL-Y work like in Insert mode. (Christian
            Brabandt)

Problem:    CTRL-] in Insert mode does not expand abbreviation when used in a
            mapping. (Yichao Zhou)
Solution:   Special case using CTRL-]. (Christian Brabandt)

Problem:    The InsertCharPre autocommand event is not triggered during
            completion and when typing several characters quickly.
Solution:   Also trigger InsertCharPre during completion.  Do not read ahead
            when an InsertCharPre autocommand is defined. (Yasuhiro Matsumoto)

Problem:    With '$' in 'cpoptions' the $ is not displayed in the first
            column.
Solution:   Use -1 instead of 0 as a special value. (Hideki Eiraku and
            Hirohito Higashi)