* Export must be canonical for multirel Pajek matrices: * `*Matrix :k` * `*Matrix :k "Optional Label"` * No `*Matrix k: "optional_label"` in exported files * No empty quotes (`""`) * Normalize polluted labels like `9 'star'` → `star` * Import remains tolerant and continues accepting all variants: * `*Matrix :k`, `*Matrix k:`, with/without quotes, with/without labels * Update shipped datasets to canonical export form so CLI golden roundtrip stays stable.
Export must be canonical for multirel Pajek matrices:
*Matrix :k*Matrix :k "Optional Label"*Matrix k: "optional_label"in exported files"")Normalize polluted labels like
9 'star'→starImport remains tolerant and continues accepting all variants:
*Matrix :k,*Matrix k:, with/without quotes, with/without labelsUpdate shipped datasets to canonical export form so CLI golden roundtrip stays stable.