Hi Konrad, It sounds similar to the recent #42543 [1]. I proposed the fix [2] using 'canonicalize-path' but Ludo was not fine with it and then committed d10474c38d58bdc676e64336769dc2e00cdfa8ed [3].
[1] http://issues.guix.gnu.org/42543 [2] http://issues.guix.gnu.org/42543#3 [3] https://git.savannah.gnu.org/cgit/guix.git/commit/?id=d10474c38d58bdc676e64336769dc2e00cdfa8ed Does it make sense? Cheers, simon