Patch 8.1.2314
Problem:    vi' sometimes does not select anything.
Solution:   Recognize an empty selection. (Christian Brabandt, closes #5183)
Files:      src/search.c, src/testdir/test_textobjects.vim


*** ../vim-8.1.2313/src/search.c        2019-11-17 17:06:25.828081709 +0100
--- src/search.c        2019-11-17 17:28:12.404623475 +0100
***************
*** 4434,4442 ****
            return FALSE;
  
        vis_bef_curs = LT_POS(VIsual, curwin->w_cursor);
        if (*p_sel == 'e')
        {
!           if (!vis_bef_curs)
            {
                // VIsual needs to be the start of Visual selection.
                pos_T t = curwin->w_cursor;
--- 4434,4443 ----
            return FALSE;
  
        vis_bef_curs = LT_POS(VIsual, curwin->w_cursor);
+       vis_empty = EQUAL_POS(VIsual, curwin->w_cursor);
        if (*p_sel == 'e')
        {
!           if (!vis_bef_curs && !vis_empty)
            {
                // VIsual needs to be the start of Visual selection.
                pos_T t = curwin->w_cursor;
***************
*** 4447,4454 ****
                restore_vis_bef = TRUE;
            }
            dec_cursor();
        }
-       vis_empty = EQUAL_POS(VIsual, curwin->w_cursor);
      }
  
      if (!vis_empty)
--- 4448,4455 ----
                restore_vis_bef = TRUE;
            }
            dec_cursor();
+           vis_empty = EQUAL_POS(VIsual, curwin->w_cursor);
        }
      }
  
      if (!vis_empty)
*** ../vim-8.1.2313/src/testdir/test_textobjects.vim    2019-06-15 
17:57:43.976724009 +0200
--- src/testdir/test_textobjects.vim    2019-11-17 17:28:12.408623493 +0100
***************
*** 47,52 ****
--- 47,55 ----
    set selection=exclusive
    exe "norm! fdvhi'y"
    call assert_equal('bcde', @")
+   let @"='dummy'
+   exe "norm! $gevi'y"
+   call assert_equal('bcde', @")
    set selection&vim
    bw!
  endfunc
*** ../vim-8.1.2313/src/version.c       2019-11-17 17:06:25.828081709 +0100
--- src/version.c       2019-11-17 17:30:19.193141869 +0100
***************
*** 743,744 ****
--- 743,746 ----
  {   /* Add new patch number below this line */
+ /**/
+     2314,
  /**/

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