READLINE PATCH REPORT ===================== Readline-Release: 8.0 Patch-ID: readline80-002 Bug-Reported-by: lessbug@qq.com Bug-Reference-ID: Bug-Reference-URL: Bug-Description: When using previous-history to go back beyond the beginning of the history list, it's possible to move to an incorrect partial line. Patch (apply with `patch -p0'): *** ../readline-8.0-patched/misc.c 2017-07-07 17:30:12.000000000 -0400 --- misc.c 2019-05-16 11:43:46.000000000 -0400 *************** *** 577,580 **** --- 590,594 ---- { HIST_ENTRY *old_temp, *temp; + int had_saved_line; if (count < 0) *************** *** 589,592 **** --- 603,607 ---- /* If we don't have a line saved, then save this one. */ + had_saved_line = _rl_saved_line_for_history != 0; rl_maybe_save_line (); *************** *** 612,616 **** if (temp == 0) { ! rl_maybe_unsave_line (); rl_ding (); } --- 627,632 ---- if (temp == 0) { ! if (had_saved_line == 0) ! _rl_free_saved_history_line (); rl_ding (); } *** ../readline-8.0/patchlevel 2013-11-15 08:11:11.000000000 -0500 --- patchlevel 2014-03-21 08:28:40.000000000 -0400 *************** *** 1,3 **** # Do not edit -- exists only for use by patch ! 1 --- 1,3 ---- # Do not edit -- exists only for use by patch ! 2