$ git clone -n https://src.fedoraproject.org/rpms/golang-github-gopherjs.git /var/lib/mock/f31-build-98364-33048/root/chroot_tmpdir/scmroot/golang-github-gopherjs
Cloning into '/var/lib/mock/f31-build-98364-33048/root/chroot_tmpdir/scmroot/golang-github-gopherjs'...
$ git reset --hard 460a8594af45de0998d3189b275ef3ef266d640f
HEAD is now at 460a859 Add patch for Golang 1.13