Limit parameter for "v2/submissions/protocol" return duplicate results

[zaxeer]

We have observed that when we use limit parameter we get different number of results in case of an Even Limit parameter e.g.; 2
For example:
https://api-test.interhyp.de/submission/v2/submissions/protocol?since=2020-04-06T00:00:00Z&embed=false&protocolType=document
Return in total 5 Submissions

But when we add limit parameter and go through next pages using after parameter we get total 6 results, where one result is duplicated.

Page 1
https://api-test.interhyp.de/submission/v2/submissions/protocol?since=2020-04-06T00:00:00Z&protocolType=document&limit=2

Page 2
https://api-test.interhyp.de/submission/v2/submissions/protocol?since=2020-04-06T00:00:00Z&protocolType=document&limit=2&after=1590125649271

Page 3
https://api-test.interhyp.de/submission/v2/submissions/protocol?since=2020-04-06T00:00:00Z&protocolType=document&limit=2&after=1593160682079

[mohamed-asfour]

Thank you zaxeer for posting this issue.

I was able to identify the problem as following:

• in total there are 6 Documents Protocol items older than the provided since param '2020-04-06' belonging to 5 different Submissions
• submission 'de-0000f50-b13mlanlg' has 2 Protocol Items for Type 'Document' with different timestamps. (can be spotted when setting embed param to true)
• therefore setting limit to less than protocol items count (6 in your case), might result in showing duplicate Submissions entries depending on the position of the protocol item in the page.

We will fix this issue and update the status here.

Best Regards