$ git clone -n https://src.fedoraproject.org/rpms/k3b.git /var/lib/mock/f42-build-3355572-45025/root/chroot_tmpdir/scmroot/k3b
Cloning into '/var/lib/mock/f42-build-3355572-45025/root/chroot_tmpdir/scmroot/k3b'...
$ git fetch origin 8a236898c17556326db5c8582e7d9920a743672f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/k3b
 * [new ref]         8a236898c17556326db5c8582e7d9920a743672f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8a23689 24.12.3