$ git clone -n https://src.fedoraproject.org/rpms/R-tibble.git /var/lib/mock/f31-build-74245-31099/root/chroot_tmpdir/scmroot/R-tibble
Cloning into '/var/lib/mock/f31-build-74245-31099/root/chroot_tmpdir/scmroot/R-tibble'...
$ git reset --hard 61e156810742815aab1534defc56e32d211cd6e8
HEAD is now at 61e1568 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild