$ git clone -n https://src.fedoraproject.org/rpms/libcxxabi.git /var/lib/mock/f33-build-279459-51692/root/chroot_tmpdir/scmroot/libcxxabi
Cloning into '/var/lib/mock/f33-build-279459-51692/root/chroot_tmpdir/scmroot/libcxxabi'...
$ git reset --hard 1e36c58105a1e643a2e8f357d276c2e15192b3d8
HEAD is now at 1e36c58 10.0.0 final