patch 8.2.2732: prompt for s///c in Ex mode can be wrong

Problem:    Prompt for s///c in Ex mode can be wrong.
Solution:   Position the cursor before showing the prompt. (closes #8073)
diff --git a/src/testdir/test_ex_mode.vim b/src/testdir/test_ex_mode.vim
index ffde11e..a761cbf 100644
--- a/src/testdir/test_ex_mode.vim
+++ b/src/testdir/test_ex_mode.vim
@@ -77,6 +77,9 @@
   call WaitForAssert({-> assert_match('  1 foo foo', term_getline(buf, 5))},
         \ 1000)
   call WaitForAssert({-> assert_match('    ^^^', term_getline(buf, 6))}, 1000)
+  call term_sendkeys(buf, "N\<CR>")
+  call term_wait(buf)
+  call WaitForAssert({-> assert_match('    ^^^', term_getline(buf, 6))}, 1000)
   call term_sendkeys(buf, "n\<CR>")
   call WaitForAssert({-> assert_match('        ^^^', term_getline(buf, 6))},
         \ 1000)