Problem:    Clipboard may be cleared on startup.
Solution:   Set clip_did_set_selection to -1 during startup. (Christian
            Brabandt)

Problem:    Reversed question mark not recognized as punctuation. (Issue 258)
Solution:   Add the Supplemental Punctuation range.

Problem:    Error reported by ubsan when running test 72.
Solution:   Add type cast to unsigned. (Dominique Pelle)

Problem:    Using unitinialized variable.
Solution:   Pass the first window of the tabpage.

Problem:    Endless loop and other problems when 'cedit' is set to CTRL-C.
Solution:   Do not call ex_window() when ex_normal_busy or got_int was set.
            (Yasuhiro Matsumoto)

Problem:    Omni complete popup drawn incorrectly.
Solution:   Call validate_cursor() instead of check_cursor(). (Hirohito
            Higashi)

Problem:    Duplicate message in message history.  Some quickfix messages
            appear twice. (Gary Johnson)
Solution:   Do not reset keep_msg too early. (Hirohito Higashi)

Problem:    Cached values for 'cino' not reset for ":set all&".
Solution:   Call parse_cino(). (Yukihiro Nakadaira)

Problem:    New and old regexp engine are not consistent.
Solution:   Also give an error for "\ze*" for the old regexp engine.