$ git clone -n https://src.fedoraproject.org/rpms/kf5-kidletime.git /var/lib/mock/f45-build-14849-464/root/chroot_tmpdir/scmroot/kf5-kidletime
Cloning into '/var/lib/mock/f45-build-14849-464/root/chroot_tmpdir/scmroot/kf5-kidletime'...
$ git fetch origin 0e2fa7a79650b139ec8d736e7b55e27f69c6f1fd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kidletime
 * [new ref]         0e2fa7a79650b139ec8d736e7b55e27f69c6f1fd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0e2fa7a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild