$ git clone -n https://src.fedoraproject.org/rpms/libxcb.git /var/lib/mock/f33-build-140659-42516/root/chroot_tmpdir/scmroot/libxcb
Cloning into '/var/lib/mock/f33-build-140659-42516/root/chroot_tmpdir/scmroot/libxcb'...
$ git reset --hard 38aaf96fba3b77185987fbc7373095b1e4802605
HEAD is now at 38aaf96 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild