$ git clone -n https://src.fedoraproject.org/rpms/R-XVector.git /var/lib/mock/f38-build-724182-99404/root/chroot_tmpdir/scmroot/R-XVector
Cloning into '/var/lib/mock/f38-build-724182-99404/root/chroot_tmpdir/scmroot/R-XVector'...
$ git reset --hard e3cf5ae7da8a1eadb54ee7a5c6110efc3ae52f62
HEAD is now at e3cf5ae R-maint-sig mass rebuild