bugs.gh_7176_test
Incorrect error "Invalid token. Malformed string." with union + blob + non utf8 varchar
  UTC 2023.02.27 09:32 pavel-zotov
  Added/Updated tests\bugs\gh_7176_test.py: Checked on 5.0.0.959, 4.0.3.2903, 3.0.11.33664 -- all OK.
  https://github.com/FirebirdSQL/firebird-qa/commit/ef2f0fa41725936a8f149f966213db7c009040c2