cueDuring + tuplet warning

[Jay Anderson]

\version "2.13.22"

one = \relative c'
{
  c4 c c \times 2/3 {c8 c c} |
  c8 c c c c c c c |
}

\addQuote "ONE" \one

two = \relative c'
{
  R1 |
  \cueDuring #"ONE" #UP {R1 |}
}

\score { \new Staff \two }
==========

Results in this warning:
cue_prob.ly:5:9: warning: No tuplet to end
  c4 c c
         \times 2/3 {c8 c c} |

This doesn't seem detrimental to the output, but it is seems to be an
unneeded warning since the tuplet isn't part of the desired cue.

-----Jay