Patch as a merge request now: https://salsa.debian.org/go-team/dh-go/-/merge_requests/7
Verified on golang-github-bgentry-go-netrc 0.0~git20140422.9fd32a8-2 in a clean unstable chroot: the warning goes from six occurrences to none, and with a wrong XS-Go-Import-Path the check fires, so the comparison runs again. One caveat is in the merge request. The comparison calls error(), so five packages whose XS-Go-Import-Path lacks the /vN of their module line would FTBFS once it works.
