$ git clone -n https://src.fedoraproject.org/rpms/haveged.git /var/lib/mock/f45-build-13341-449/root/chroot_tmpdir/scmroot/haveged
Cloning into '/var/lib/mock/f45-build-13341-449/root/chroot_tmpdir/scmroot/haveged'...
$ git fetch origin 7366811f5c46c710da32fc906ee91e3330adf77a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/haveged
 * [new ref]         7366811f5c46c710da32fc906ee91e3330adf77a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7366811 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild