Bug: Ontology Store Concat Data Properties Instead of Updating

[FlorentLvr]

Description: When updating data properties in the ontology store, the system is concatenating the new data with the existing data instead of replacing it. This leads to incorrect data representation and potential data integrity issues.

Steps to Reproduce:

1. Access the ontology store.
2. Attempt to update a data property with new information.
3. Observe that the new data is concatenated with the existing data instead of updating it.

Expected Behavior: The data property should be updated with the new information, replacing the old data.

Actual Behavior: The new data is concatenated with the existing data.

Impact: This bug affects data accuracy and integrity within the ontology store, leading to potential misinterpretations and errors in data processing.

Please investigate and resolve this issue to ensure data properties are updated correctly.