problem with beam-groups in 5/8 timeSignature

[Stefan Thomas]

Dear community,
I have a problem with different Beam-Gruops in different 5/8-bars. The first bar looks lke expected, the 2nd doesn't. How can I change the 2nd Bar to proper beam-groups of 3+2 8th-notes?
Here the example:
\version "2.13.0"
\layout { \context { \Staff \consists "Measure_grouping_engraver" } }
fuenfachteldreizwo = { 
   #(set-time-signature 5 8 '(3 2))
  #(override-auto-beam-setting '(end * * 5 8) 3 8 'Score)
#(override-auto-beam-setting '(end * * 5 8) 5 8 'Score) }

fuenfachtelzwodrei = { 
   #(set-time-signature 5 8 '(2 3))
  #(override-auto-beam-setting '(end * * 5 8) 2 8 'Score)
#(override-auto-beam-setting '(end * * 5 8) 5 8 'Score) }
music = \relative c'' { c8 d e f g }

\new Staff { 
  \fuenfachtelzwodrei
  \music
  \fuenfachteldreizwo
  \music }