$ git clone -n https://src.fedoraproject.org/rpms/capnproto.git /var/lib/mock/f31-build-56542-28232/root/chroot_tmpdir/scmroot/capnproto
Cloning into '/var/lib/mock/f31-build-56542-28232/root/chroot_tmpdir/scmroot/capnproto'...
$ git reset --hard 900c3168f13fc9a951dcb183e7d989e883678033
HEAD is now at 900c316 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild