Compatibility with native backup feature

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Install Terminal IDE
2. Run app and press Install System
3. Trigger a backup (e.g.: adb backup)

What is the expected output? What do you see instead?
Should backup phone contents without sdcard. In my case it will be about 500MB.
If I have Terminal IDE installed it will be 2GB+ (Depends on what is in the SD 
card, and it takes a really long time). It is also not possible to restore to 
this backup (only if decrypting the backup file removing this app folder and 
re-encrypt, otherwise it will hang while restoring this app and will not 
restore the following apps on backup).

What version of the product are you using? On what operating system?
Version 1.991
O.S. 4.1.2

Please provide any additional information below.

Device: Galaxy Nexus
I have to uninstall the application in order to properly backup.
Possibly some symbolic linking is messing the native backup.
For me is not a big issue (I uninstall, backup and re-install). 
But until it is fixed(if ever or even possible) users should be aware of this 
issue.

Original issue reported on code.google.com by Joao.Ce...@gmail.com on 21 Nov 2012 at 4:30

[GoogleCodeExporter]

I can confirm this bug.

The native backup system simply follow the symlink 
/data/data/com.spartacusrex.spartacuside/files/sdcard -> /storage/emulated/0.

Removing this symlink before triggering the backup cause the backup to work 
properly.

Any reason to have this symlink ?

Original comment by nicolas....@gmail.com on 28 Aug 2013 at 11:17