when pulling details of changes done on BDP variable in bulk it is copying only the last value

Summary:

Hi Experts

I'm using below js code to pull the unsubmittaed changes from the BDP variable to get the records which were added, but i could see that the last record modified it always picked even though there are n number of objects in the array. Please help me., i'm unable to get all the changed records in one go , even though console.log() in browser shows the exact data but if i use it to assign to any variable the data is not reflecting correct. Please help me.

I have created a code to reproduce this issue: add items and click on save the array of changed items will show up in second table