[3.6.3] Duplicated changelog rows issue (Oracle)

I have duplicate rows in my DB for the exact same row and exact same date executed.

This is so far what I have found out, specifically for Oracle using the liquibase-core and no extensions.

on 3.6.3 and 3.5.4 / 3.5.3 I have seen this behaviour. How to specifically recreate is unknown but my guess is using multiple clients on 1 DB. using different instances. Its not a matter of who goes first. as the rows already exist for a long time. the DB is used by different developers.

I am suspecting when a new databasecontent xml update is found the database duplicates the rows, but im not sureĀ  where the duplication of rows could happen, as its exactly the same row.

Please let me know what I can do to fix this issue.

Edit: clarified issue what im experiencing.