patch 9.0.0125: cursor positioned wrong with virtual text after the line

Problem:    Cursor positioned wrong with virtual text after the line.
Solution:   Clear cts_with_trailing.
diff --git a/src/testdir/test_textprop.vim b/src/testdir/test_textprop.vim
index 987df98..5ac787e 100644
--- a/src/testdir/test_textprop.vim
+++ b/src/testdir/test_textprop.vim
@@ -2224,6 +2224,10 @@
       call prop_add(1, 0, #{type: 'rightprop', text: ' RIGHT ', text_align: 'right'})
       call prop_add(1, 0, #{type: 'afterprop', text: ' AFTER ', text_align: 'after'})
       call prop_add(1, 0, #{type: 'belowprop', text: ' BELOW ', text_align: 'below'})
+
+      call setline(2, 'Last line.')
+      call prop_add(2, 0, #{type: 'afterprop', text: ' After Last ', text_align: 'after'})
+      normal G$
   END
   call writefile(lines, 'XscriptPropsWithTextAfter')
   let buf = RunVimInTerminal('-S XscriptPropsWithTextAfter', #{rows: 6, cols: 60})