Changing time signature in percent repeats

[Vaylor Trucks]

% If you combine the 3/8 bar and 2/4 bar into a single 7/8 bar it works
% but like this you get warning: mid-measure time signature without \partial

\version "2.22.0"
\score { << \new DrumStaff << \drummode {
  \repeat percent 2 {
    \time 3/8 sn8 sn sn
    \time 2/4 sn8 sn sn sn  }
  \time 4/4 sn8 sn sn sn sn sn sn sn
} >> >> }