$ git clone -n https://src.fedoraproject.org/rpms/R-readr.git /var/lib/mock/f33-build-326074-58032/root/chroot_tmpdir/scmroot/R-readr
Cloning into '/var/lib/mock/f33-build-326074-58032/root/chroot_tmpdir/scmroot/R-readr'...
$ git reset --hard e17a3260a1b10e1381fd29ba9b3ef793691752e9
HEAD is now at e17a326 - Second attempt - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild