$ git clone -n https://src.fedoraproject.org/rpms/opencv.git /var/lib/mock/f33-build-290764-54553/root/chroot_tmpdir/scmroot/opencv
Cloning into '/var/lib/mock/f33-build-290764-54553/root/chroot_tmpdir/scmroot/opencv'...
$ git reset --hard d8ec2071a838c32af2c702d8d2c194aaad3499f7
HEAD is now at d8ec207 Disable LTO on ppc64le, add undefine __cmake_in_source_build to allow build on Fedora < 33