forked from 1b-agent/opencadstudio-upstream
The codec keeps dynamic-block, associative and material records intact on DWG save (strict readers rejected re-saved drawings at BLOCKSCALEACTION, associative action bodies and MATERIAL records). A checker material texture no longer rewrites the native map source, so a map with a procedural texture counts as content whatever its source says. Valuable parts of #1671 (with opencadcodec#100): measured on 235 sample drawings re-saved after an edit, a strict reader now rejects 4 instead of 7; the remaining 4 are R14/R2000 tables, which the PR codec also fails. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>