$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtspeech.git /var/lib/mock/f39-build-1673300-40874/root/chroot_tmpdir/scmroot/qt5-qtspeech
Cloning into '/var/lib/mock/f39-build-1673300-40874/root/chroot_tmpdir/scmroot/qt5-qtspeech'...
$ git fetch origin b6ddaf523ec175851fec95af718e4a3c00a9a0d0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtspeech
 * [new ref]         b6ddaf523ec175851fec95af718e4a3c00a9a0d0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b6ddaf5 5.15.11