patch 9.0.0697: cursor in wrong position with Visual substitute

Problem:    Cursor in wrong position with Visual substitute.
Solution:   When restoring 'linebreak' mark the virtual column as invalid.
            (closes #11309, closes #11311)
diff --git a/src/testdir/test_listlbr.vim b/src/testdir/test_listlbr.vim
index 97d6ccd..ace398b 100644
--- a/src/testdir/test_listlbr.vim
+++ b/src/testdir/test_listlbr.vim
@@ -8,6 +8,7 @@
 CheckFeature conceal
 
 source view_util.vim
+source screendump.vim
 
 function s:screen_lines(lnum, width) abort
   return ScreenLines(a:lnum, a:width)
@@ -133,6 +134,26 @@
   call s:close_windows()
 endfunc
 
+func Test_linebreak_reset_restore()
+  CheckScreendump
+
+  let lines =<< trim END
+      vim9script
+      &linebreak = true
+      &showcmd = true
+      &showmode = false
+      ('a'->repeat(&columns - 10) .. ' ' .. 'b'->repeat(10) .. ' c')->setline(1)
+  END
+  call writefile(lines, 'XlbrResetRestore', 'D')
+  let buf = RunVimInTerminal('-S XlbrResetRestore', {'rows': 8})
+
+  call term_sendkeys(buf, '$v$s')
+  call VerifyScreenDump(buf, 'Test_linebreak_reset_restore_1', {})
+
+  call term_sendkeys(buf, "\<Esc>")
+  call StopVimInTerminal(buf)
+endfunc
+
 func Test_virtual_block()
   call s:test_windows('setl sbr=+')
   call setline(1, [