bad warning when using figured bass

[John Williams]

> gmane wrote:
> You seem to be top-posting. Don't do that.
> so I added this text to convince it that I wasn't.  Annoying, isn't it?
> The real message starts below.


When a figured bass line has durations which overlap with rests on the same
staff, it works, but it outputs a false warning:


bugfb.ly:6:38: warning: Two simultaneous rest events, junking this one
                \relative c' { c4 r c
                                      r  }
bugfb.ly:6:34: warning: Previous rest event here
                \relative c' { c4
                                  r c r  }[1]


Here is the example:


\version "2.9.24"
\score {
        \context Staff = "cello" <<
                \figuremode { <7>1 }
                \relative c' { c4 r c r  }
        >>
}