Why is the bonding information if mentioned in %pre script of kickstart file not taken into consideration by anaconda in Red Hat Enterprise Linux 6.4?

Issue

• In Red Hat Enterprise Linux 6.4 release notes, its mentioned that Configuring Bonding via kickstart was supported. The same is mentioned in solution 69055 as well.
• But this is creating bonding devices only when the network information is provided in kickstart body as follows.

network --onboot yes --activate --device bond0 --bootproto static --ip=xxx.xxx.xxx.xxx --netmask=255.255.255.0 --gateway=yyy.yyy.yyy.yyy --hostname=test.example.com --noipv6 --nameserver zzz.zzz.zzz.zzz --bondopts=mode=balance-tlb,miimon=100 --bondslaves eth0,eth1

• If the bonding information is provided in %pre script and then used with %include macro in kickstart body, its not taken into consideration by anaconda at all. For example, in the following script, it will generate a file /tmp/buildnet which can be used using %include /tmp/buildnet in kickstart body.

%pre --interpreter=/bin/bash --logfile /tmp/prescript.log

eval `ifconfig eth0 | grep 'inet addr' | sed 's/Bcast//' | gawk -F: '{print "IP="$2 "NETMASK="$4}'`
GATEWAY=`/sbin/route -n | grep ^0.0.0.0 | head -1 | awk '{ print $2 }'`
BOND=`cat /sys/class/net/eth1/operstate`

touch /tmp/buildnet

if [ $BOND == "up" ];then
cat << EOF > /tmp/buildnet
network --onboot=yes --activate --device=bond0 --bootproto=static --ip=$IP --netmask=$NETMASK --gateway=$GATEWAY --nameserver=aa.bb.cc.dd --hostname=$HOSTNAME --noipv6 --bondopts=mode=balance-tlb,miimon=100 --bondslaves=eth0,eth1
EOF
fi
%end

• Is there any problem with anaconda shipped with Red Hat Enterprise Linux 6.4?