$ git clone -n https://src.fedoraproject.org/rpms/python-www-authenticate.git /var/lib/mock/f45-build-33704-672/root/chroot_tmpdir/scmroot/python-www-authenticate
Cloning into '/var/lib/mock/f45-build-33704-672/root/chroot_tmpdir/scmroot/python-www-authenticate'...
$ git fetch origin 8cc939d8ab0f5760c0dbbb52cbbe862339e9de6e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-www-authenticate
 * [new ref]         8cc939d8ab0f5760c0dbbb52cbbe862339e9de6e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8cc939d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild