The register import skips already-imported customers and suppliers by
org-number only. Records without an org-number (private-person customers,
suppliers like PostNord/IKANO) can never match, so every re-sync re-creates
them — and their invoices — producing 2x, 3x, 4x duplicate rows.
The nameToCustomerId / nameToSupplierId maps were already built and populated
but never consulted for dedup. Use them as a fallback: match on org-number
when present, otherwise on name. This mirrors the sales-invoice customer-stub
path, which already keys on `org ?? name`. When an org-number is present we
still match on it alone, avoiding false-positive name collisions across
distinct legal entities.
Signed-off-by: Jonas Hagberg <jonas@lindan.se>
Jonas Hagberg
4f96ce920a