$ git clone -n https://src.fedoraproject.org/rpms/phonon-qt4.git /var/lib/mock/f45-build-27840-626/root/chroot_tmpdir/scmroot/phonon-qt4
Cloning into '/var/lib/mock/f45-build-27840-626/root/chroot_tmpdir/scmroot/phonon-qt4'...
$ git fetch origin b24fabd5d0cea1cf0c4b1428c57c712f8c6f1a0f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/phonon-qt4
 * [new ref]         b24fabd5d0cea1cf0c4b1428c57c712f8c6f1a0f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b24fabd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild