$ git clone -n https://src.fedoraproject.org/rpms/quaternion.git /var/lib/mock/f33-build-291858-54770/root/chroot_tmpdir/scmroot/quaternion
Cloning into '/var/lib/mock/f33-build-291858-54770/root/chroot_tmpdir/scmroot/quaternion'...
$ git reset --hard 30806fd3b6ecbb7e24b456f731a4b117ec42c334
HEAD is now at 30806fd fix build failure