Description of problem:
big data restore failed

Version-Release number of selected component (if applicable):
devenv_3227

How reproducible:
devenv_3227
Step to reproduce:
1. create an php app
# rhc app create php php-5.3 -predhat
2. ssh login app and create bigfile under directory: ~/app-root/runtime/repo/php
# ssh 51930fae6e0f5d0e090000c9@phpbigdataji1l-sun005.osetestv2.com
> cd ~/app-root/runtime/repo/php
> dd if=/dev/urandom of=bigfile bs=1M count=300
3. snapshot save app
# rhc snapshot save php -predhat
4. login app to remove bigfile
# ssh 51930fae6e0f5d0e090000c9@phpbigdataji1l-sun005.osetestv2.com
> rm -f ~/app-root/runtime/repo/php/bigfile
5. snapshot restore app 
# rhc snapshot restore php -f php.tar.gz -predhat
6. check the bigfile existed in app


Actual results:
bigfile haven't exist in app 


expect results:
bigfile existed in app


Additional info: