F upate overwrite

Summary

Confirmation for #47 (closed) (https://gitlab.com/caosdb/caosdb-crawler/-/issues/23). Adds an xfailing test that should verify that crawler updates don't overwrite existing properties.

Focus

New integration test.

Test Environment

Start LinkAhead>=0.9 with the integrationtests/test-profile/profile.yml and run

cd integrationtests
pytest -vvv test_issues.py

and verify that it xfails correctly (you can also remove the xfail and check that name and prop_a are overwritten wrongly).

Check List for the Author

Please, prepare your MR for a review. Be sure to write a summary and a focus and create gitlab comments for the reviewer. They should guide the reviewer through the changes, explain your changes and also point out open questions. For further good practices have a look at our review guidelines

• All automated tests pass
• Reference related issues
• Up-to-date CHANGELOG.md (or not necessary)
• Annotations in code (Gitlab comments)
  • Intent of new code
  • Problems with old code
  • Why this implementation?

Check List for the Reviewer

• I understand the intent of this MR
• All automated tests pass
• Up-to-date CHANGELOG.md (or not necessary)
• The test environment setup works and the intended behavior is reproducible in the test environment
• In-code documentation and comments are up-to-date.
• Check: Are there specifications? Are they satisfied?

For further good practices have a look at our review guidelines.