$ git clone -n https://src.fedoraproject.org/rpms/libcxxabi.git /var/lib/mock/f33-build-561669-65809/root/chroot_tmpdir/scmroot/libcxxabi
Cloning into '/var/lib/mock/f33-build-561669-65809/root/chroot_tmpdir/scmroot/libcxxabi'...
$ git reset --hard ec90e409db70974630e8c240bf40a4912526fe03
HEAD is now at ec90e40 Fix NVR