$ git clone -n https://src.fedoraproject.org/rpms/libktorrent.git /var/lib/mock/f42-build-863739-171737/root/chroot_tmpdir/scmroot/libktorrent
Cloning into '/var/lib/mock/f42-build-863739-171737/root/chroot_tmpdir/scmroot/libktorrent'...
$ git fetch origin 9e990d24809769d8ef226230dbf3b6866e0f44da:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libktorrent
 * [new ref]         9e990d24809769d8ef226230dbf3b6866e0f44da -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9e990d2 24.12.0