ledger include account bug test

% cat <<EOF > a.tl
--european
D h0.000,00
i 2009/12/07 08:00:00 Task A:1
o 2009/12/07 09:00:00 end task
i 2009/12/07 09:00:00 Meeting
o 2009/12/07 10:30:00 end task
EOF
% cat <<EOF > b.tl 
--european
D h0.000,00
i 2009/12/07 08:00:00 Task B:1
o 2009/12/07 09:00:00 end task
i 2009/12/07 09:00:00 Meeting
o 2009/12/07 10:30:00 end task
EOF
% cat <<EOF > c.tl 
--european
D h0.000,00
i 2009/12/07 08:00:00 Task C:1
o 2009/12/07 08:30:00 end task
i 2009/12/07 08:30:00 Task C:2
o 2009/12/07 09:00:00 end task
i 2009/12/07 09:00:00 Meeting
o 2009/12/07 10:30:00 end task
EOF
% cat <<EOF > timelog.tl 
account Account_A
!include a.tl
end account

account Account_B
!include b.tl
end account

account Account_C
!include c.tl
end account
EOF
% ledger -f timelog.tl bal
               4,50h  Meeting
               1,00h  Task A:1
               1,00h  Task B:1
               1,00h  Task C
               30,0m    1
               30,0m    2
--------------------
               7,50h

I would expect something along the lines of:
               2,50h  Account_A
               1,50h    Meeting
               1,00h    Task A:1
               2,50h  Account_B
               1,50h    Meeting
               1,00h    Task B:1
               2,50h  Account_C
               1,50h    Meeting
               1,00h    Task C
               30,0m      1
               30,0m      2
--------------------
               7,50h

which is what I get when using this setup:
% cat <<EOF > a.tl
account Account_A
--european
D h0.000,00
i 2009/12/07 08:00:00 Task A:1
o 2009/12/07 09:00:00 end task
i 2009/12/07 09:00:00 Meeting
o 2009/12/07 10:30:00 end task
end account
EOF
% cat <<EOF > b.tl
account Account_B 
--european
D h0.000,00
i 2009/12/07 08:00:00 Task B:1
o 2009/12/07 09:00:00 end task
i 2009/12/07 09:00:00 Meeting
o 2009/12/07 10:30:00 end task
end account
EOF
% cat <<EOF > c.tl 
account Account_C
--european
D h0.000,00
i 2009/12/07 08:00:00 Task C:1
o 2009/12/07 08:30:00 end task
i 2009/12/07 08:30:00 Task C:2
o 2009/12/07 09:00:00 end task
i 2009/12/07 09:00:00 Meeting
o 2009/12/07 10:30:00 end task
end account
EOF
% cat <<EOF > timelog.tl 
account Account_A
!include a.tl

!include b.tl

!include c.tl
EOF