Comment 1 for bug 1758683

Dear Sasha,
thanks for reporting this.
Admittedly, that part of the package was never meant to be rock solid, and hasn't been
tested with different root versions, or with large files. Thus, in this case it is not
suprising that it doesn't work well.
In spite of being the original author of that piece of code, I can't remember why hadd
was not deemed a viable option. Maybe it was simply due to my poor understanding of root.
I'll investigate as soon as I'll have some time. In the meanwhile, I have nothing against
you using hadd, but I strongly suggest to test its results against those of the standard
package in a few cases where the latter is supposed to do well, and which are quick to run.
Best, Stefano.