Metronome sign overlaps notes

[Sebastiano Vigna]

Dear developers,
in the following example


\version "2.4.3"

\score {
       \new DrumStaff <<
       \set Staff.minimumVerticalExtent = #'(-7 . 7)
       \override Score.SpacingSpanner #'shortest-duration-space = #3
       \override DrumStaff.Beam #'damping = #1000000000
       \context DrumVoice = "1" { s1*2 }
       \context DrumVoice = "2" { s1*2 }
       \tempo 4 = 92
       \drummode {
       <<
       {  \repeat unfold 8 { hh8[ hh] } } \\
       { bd8 bd sn16 bd r8 bd8. bd16 sn4  |
         bd8. bd16 sn8 sn16 sn bd8 bd sn16 bd r8 |
         }
       >>

     }
     >>
     \layout {
       indent = 0\mm
       raggedlast = ##f
     }
}


the metronome sign overlaps notes.

-- 
Ciao,

                                        seba