$ git clone -n https://src.fedoraproject.org/rpms/golang-github-nicksnyder-i18n.git /var/lib/mock/f41-build-1036160-18708/root/chroot_tmpdir/scmroot/golang-github-nicksnyder-i18n
Cloning into '/var/lib/mock/f41-build-1036160-18708/root/chroot_tmpdir/scmroot/golang-github-nicksnyder-i18n'...
$ git fetch origin 1b3b9621e4d318d26567151fae3377447c4fc75b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-nicksnyder-i18n
 * [new ref]         1b3b9621e4d318d26567151fae3377447c4fc75b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b3b962 Fix FTBFS