$ git clone -n https://src.fedoraproject.org/rpms/aggregate.git /var/lib/mock/f31-build-52379-27658/root/chroot_tmpdir/scmroot/aggregate
Cloning into '/var/lib/mock/f31-build-52379-27658/root/chroot_tmpdir/scmroot/aggregate'...
$ git reset --hard c2f9326e7154c69e16efbdc90818b7bfee5299f5
HEAD is now at c2f9326 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild