$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtspeech.git /var/lib/mock/f42-build-side-1-3576634-46787/root/chroot_tmpdir/scmroot/qt5-qtspeech
Cloning into '/var/lib/mock/f42-build-side-1-3576634-46787/root/chroot_tmpdir/scmroot/qt5-qtspeech'...
$ git fetch origin 2a419ad9d325778a8b58fc337944308da9df8793:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtspeech
 * [new ref]         2a419ad9d325778a8b58fc337944308da9df8793 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2a419ad 5.15.17