patch 8.0.0692: CTRL-G with 'incsearch' and ? goes in the wrong direction

Problem:    Using CTRL-G with 'incsearch' and ? goes in the wrong direction.
            (Ramel Eshed)
Solution:   Adjust search_start. (Christian Brabandt)

Author: brammool

src/ex_getln.c

@@ -1708,6 +1708,14 @@ getcmdline(
 			    search_start = t;
 			    (void)decl(&search_start);
 			}
+			else if (c == Ctrl_G && firstc == '?')
+			{
+			    /* move just after the current match, so that
+			     * when nv_search finishes the cursor will be
+			     * put back on the match */
+			    search_start = t;
+			    (void)incl(&search_start);
+			}
 			if (LT_POS(t, search_start) && c == Ctrl_G)
 			{
 			    /* wrap around */

src/testdir/test_search.vim

@@ -322,3 +322,37 @@ func Test_search_cmdline3()
   call test_override("char_avail", 0)
   bw!
 endfunc
+
+func Test_search_cmdline4()
+  if !exists('+incsearch')
+    return
+  endif
+  " need to disable char_avail,
+  " so that expansion of commandline works
+  call test_override("char_avail", 1)
+  new
+  call setline(1, ['  1 the first', '  2 the second', '  3 the third'])
+  set incsearch
+  $
+  call feedkeys("?the\<c-g>\<cr>", 'tx')
+  call assert_equal('  3 the third', getline('.'))
+  $
+  call feedkeys("?the\<c-g>\<c-g>\<cr>", 'tx')
+  call assert_equal('  1 the first', getline('.'))
+  $
+  call feedkeys("?the\<c-g>\<c-g>\<c-g>\<cr>", 'tx')
+  call assert_equal('  2 the second', getline('.'))
+  $
+  call feedkeys("?the\<c-t>\<cr>", 'tx')
+  call assert_equal('  1 the first', getline('.'))
+  $
+  call feedkeys("?the\<c-t>\<c-t>\<cr>", 'tx')
+  call assert_equal('  3 the third', getline('.'))
+  $
+  call feedkeys("?the\<c-t>\<c-t>\<c-t>\<cr>", 'tx')
+  call assert_equal('  2 the second', getline('.'))
+  " clean up
+  set noincsearch
+  call test_override("char_avail", 0)
+  bw!
+endfunc

src/version.c

@@ -764,6 +764,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    692,
 /**/
     691,
 /**/