FIX: #131 (query: "and" in subproperties)

Summary

Fix for https://gitlab.com/caosdb/caosdb-server/-/issues/131

See also #214 (closed)

Focus

The bug consisted of two problems:

1. In queries similar to FIND ENTITY WITH pname1.x>0 AND ... the part after the AND was interpreted as filters on pname1, not on the entity.
2. In queries similar to FIND ENTITY WITH ( pname1.x>0 ) AND ( ... ) everything after the first round bracket until the last round bracket was interpreted as the unit (so the unit was ) AND ( ...) and the query had only a single filter and the AND was not interpreted as a marker for the conjunction.

Test Environment

No special setup required.

Check List for the Author

• All automated tests pass
• Reference related Issues
• Up-to-date CHANGELOG.md
• Annotations in code (Gitlab comments)
  • Intent of new code
  • Problems with old code
  • Why this implementation?

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• I understand the intent of this MR
• All automated tests pass
• Up-to-date CHANGELOG.md
• 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?

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assigned to @timm

changed the description

requested review from @daniel

marked the checklist item All automated tests pass as completed

marked the checklist item Reference related Issues as completed

marked the checklist item Up-to-date CHANGELOG.md as completed

marked the checklist item Annotations in code (Gitlab comments) as completed

resolved all threads

added 1 commit

• fb2e600f - MAINT: Putting TestCQL tests in order.

Compare with previous version

marked the checklist item I understand the intent of this MR as completed

marked the checklist item All automated tests pass as completed

marked the checklist item Up-to-date CHANGELOG.md as completed

marked the checklist item The test environment setup works and the intended behavior is as completed