Hi, "guix graph" delivers the same package with different IDs. Here is an example with a node delivered twice. (For plasma-workspace, which I'm working on, this package was even listed four times).
$ ./pre-inst-env guix graph -t package -b graphviz qtbase | grep autoconf-wrapper "59511552" [label = "autoconf-wrapper-2.69", shape = box, fontname = Helvetica]; "59511744" [label = "autoconf-wrapper-2.69", shape = box, fontname = Helvetica]; -- Regards Hartmut Goebel | Hartmut Goebel | h.goe...@crazy-compilers.com | | www.crazy-compilers.com | compilers which you thought are impossible |