hadd when given a @list.txt argument chokes at the end asking for non-existent file.
This was working in 5.27 and in 5.32 it is broken.
I first thought this was a problem when using xrootd paths, but a simple case fails.
$ cat list.txt
$ wc -l list.txt
$ hadd -v 99 hadded.root @list.txt
hadd Target file: hadded.root
hadd Source file 1: 1.root
hadd Source file 2: 2.root
hadd Source file 3: 3.root
hadd Source file 4:
Error in <TFile::Open>: no url specified
Error in <TFileMerger::AddFile>: cannot open file