https://bugzilla.redhat.com/show_bug.cgi?id=1629491
Once the official package drops, you should be able to download the SRPM here:
https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/SRPMS/Packages/s/The 3.4.1 package is there as I type this, and I see it has a lot of patches marked 3.4.1. So it's probably not as easy as just dropping the 3.4.2 tarball into it.