[Due for payment 2025-09-02] [Multi-Files Drag-and-Drop] Fix specific navigation issue

[lakchote]

For context please see #67042 (comment)

[koko57]

PROBLEM

The main issue is with navigation in the IOU flow when users want to add more receipts after changing participants.
This problem was first discovered in issue #65849 and got a hotfix in PR #65898. Originally, we only found it affecting users who changed participants to self DM, but later we discovered it also impacts:
• Users with a default workspace (auto-assigning flow)

• Users without a default workspace (no auto-assigning)

Potential Root Cause

We haven't pinpointed the exact cause yet. My best guess is that it might be related to ⁠reportID and ⁠transactionID getting out of sync - these values come from both the URL and Onyx, which could be causing conflicts.

[koko57]

@lakchote what should be the priority of this one? Can we possibly switch it to weekly? I will try to do as much investigation as I can this week, but I'm also engaged in the BBA project.

[melvin-bot]

@lakchote, @koko57 Whoops! This issue is 2 days overdue. Let's get this updated quick!

[koko57]

I haven't found nothing new here

[koko57]

I've noticed that the main problem is with changing the URL param from create/submit to track when choosing the self DM - I guess that handling this one correctly will solve the issue. It doesn't happen when another participant/workspace is selected