$ git clone -n https://src.fedoraproject.org/rpms/R-V8.git /var/lib/mock/f33-build-610485-67391/root/chroot_tmpdir/scmroot/R-V8
Cloning into '/var/lib/mock/f33-build-610485-67391/root/chroot_tmpdir/scmroot/R-V8'...
$ git reset --hard a59454159b476c1b379246a702bbb50759fc90c7
HEAD is now at a594541 Update to latest version.