$ git clone -n https://src.fedoraproject.org/rpms/dnsviz.git /var/lib/mock/f45-build-51904-905/root/chroot_tmpdir/scmroot/dnsviz
Cloning into '/var/lib/mock/f45-build-51904-905/root/chroot_tmpdir/scmroot/dnsviz'...
$ git fetch origin e73a81da382686637ef8d66e9600292e335ac270:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dnsviz
 * [new ref]         e73a81da382686637ef8d66e9600292e335ac270 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e73a81d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild