Bug: hidden notes with tails

[Colin Wilding]

Version 2.6.1 (Windows).

If you hide a note with a 'tail' (i.e. an unbeamed note length 8 or
higher) then follow it with  visible notes with tails, then the tails
on the visible notes are hidden.

In the score below the first three bars display correctly but the
subsequent bars all have incorrectly displayed notes (marked 'x').

\version "2.6.1"
\notemode { a'4 b'4.*1/3 \hideNotes c''4 \unHideNotes c''8 d''4
        a'4 b'4.*2/3 \hideNotes c''16[ c''16] \unHideNotes c''16 d''4 e''16
        a'4 b'4.*2/3 \hideNotes c''8 \unHideNotes c''4 d''8
        a'4 b'4.*2/3 \hideNotes c''8 \unHideNotes c''8^"x" d''4
        a'4 b'4.*2/3 \hideNotes c''8 \unHideNotes c''8^"x" d''^"x" e''^"x"
        a'4 b'4.*2/3 \hideNotes c''8 \unHideNotes c''16^"x" d''^"x" e''8. f''16
        a'4 b'4.*5/6 \hideNotes c''16 \unHideNotes c''16^"x" d''4 e''16
        a'4 b'4.*5/6 \hideNotes c''16 \unHideNotes c''8^"x" d''4 }


Þing