The bare root code of an assembly (e.g. 9284208188, without a _D... suffix)
is always referenced inside its own suffixed sub-assemblies as a genuine
placement pointing back to the general assembly. Following it during
recursive resolution pulled in the entire product tree instead of just the
requested sub-assembly (598 components collected instead of ~65 on
9284208188_D600). Fixed by seeding the visited-codes set with each starting
assembly's root code, in both scripts/ExtractCreoStrings.cs and the two BFS
call sites in Form1.cs (RisolviAlberoComponenti, AssiemeCompleto).
Also closes two recall gaps found by comparing against a real Creo BOM
report: some real placements only show up as the code repeated twice
separated by a NUL byte rather than the usual "Componente ID N (...)" text,
and family-table bearing codes (CUSCI_...) use the same <...> bracket
convention as UNI hardware but weren't recognized.
docs/formato-asm.md documents all three findings.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>