Merging entities : recurring bug

[Fred-certeu]

Please replace every line in curly brackets { like this } with an appropriate answer, and remove this line.

Description

In some cases when trying to merge two entities, the following error is returned:
"There is more than one thing of type [stix_relation_embedded] that owns the key [xxxxxx] of type [internal_id_key]

Environment

1. OS (where OpenCTI server runs): { e.g. Mac OS 10, Windows 10, Ubuntu 16.4, etc. }
2. OpenCTI version: 3.2.2
3. OpenCTI client: { e.g. frontend or python }
4. Other environment details:

Reproducible Steps

Steps to create the smallest reproducible scenario:

1. { e.g. Run ... }
2. { e.g. Click ... }
3. { e.g. Error ... }

Expected Output

Merging 2 entities

Actual Output

Merging is not done. Error message (see above)

Additional information

I seems that the bug comes when the two entities to merge share some relationships with other entities (e.g. 2 malware having "indicate" relationships with the same indicators)

[cvdsouza]

+1 on this bug. We have seen it in our instance as well.