Problem:    Abbreviation doesn't work after backspacing newline. (Hkonrk)
Solution:   Set the insert start column. (closes vim/vim#1609)
https://github.com/vim/vim/commit/878c263a489b7e211eda31fa13a3d5ad9e120554

Solution:   Completion for user command argument not tested.
Problem:    Add a test.
https://github.com/vim/vim/commit/a33ddbbd04ca9b81cba6114708f42b8e26293b99

Problem:    Using uninitialized memory when 'isfname' is empty.
Solution:   Don't call getpwnam() without an argument. (Dominique Pelle,
            closes vim/vim#1464)
https://github.com/vim/vim/commit/187a4f28140f10ff833862be7e3ef823d317e1c7

Problem:    No test for mapping timing out.
Solution:   Add a test.
https://github.com/vim/vim/commit/b7637c44c26b057d1f3721d932bbab06d9f74393

Problem:    dv} deletes part of a multi-byte character. (Urtica Dioica)
Solution:   Include the whole character.
https://github.com/vim/vim/commit/bf3d58073f7b34b2d65d1d08a728d1164e03cceb

Problem:    May get ml_get error when :pydo deletes lines or switches to
            another buffer. (Nikolai Pavlov, issue vim/vim#1421)
Solution:   Check the buffer and line every time.
https://github.com/vim/vim/commit/a58883b4ea0bbb813fd4dd7eb49dd6f03e3e5387

(We only include the tests, the Vim code changes are N/A for Nvim.)

Problem:    When calling setpos() with a buffer argument it often is ignored.
            (Matthew Malcomson)
Solution:   Make the buffer argument work for all marks local to a buffer.
            (neovim vim/vim#5713)  Add more tests.
https://github.com/vim/vim/commit/f13e00b2cf381e13fd327b5387a5bd6f004ac2a3

Problem:    'colorcolumn' has a higher priority than 'hlsearch', it should be
            the other way around. (Nazri Ramliy)
Solution:   Change the priorities. (LemonBoy, closes vim/vim#1794)
https://github.com/vim/vim/commit/774e5a9673260b1b8b88463669213a96637f72e8