$ git clone -n https://src.fedoraproject.org/rpms/R-promises.git /var/lib/mock/f33-build-536123-64955/root/chroot_tmpdir/scmroot/R-promises
Cloning into '/var/lib/mock/f33-build-536123-64955/root/chroot_tmpdir/scmroot/R-promises'...
$ git reset --hard 7beb0c53892a395890a896b7080e047636dd7c3d
HEAD is now at 7beb0c5 - Second attempt - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild