bug#24406: rm command: different behaviors seen with indirect blocks of a file

[Paul Eggert]

Kothagere Siddalinga, Mahesh wrote:
> Request you to point me in the direction as to why only some distributions of 
> Linux seems to zero out the indirect block pointers associated with the files.

I'm afraid that bug-coreutils is not a good mailing list to query about this. 
You might doing your homework by reading the relevant file systems' source code.