Getting Variations Seed Type - Null when trying to restore production Griffin seed after using pr seed flag

[stephendonner]

Description

Getting Variations Seed Type - Null when trying to restore production Griffin seed after using pr seed flag

This was found whilst testing the 3rd case in #39689

Steps to reproduce

1. install 1.69.108
2. launch Brave using --variations-pr=1123
3. restarted Brave
4. wait 10+ seconds (preferably more, accounting for slow connections/transfers)
5. restart Brave
6. open brave://version and confirm the special seed details from Simplify variations pull requests testing process #39689 (comment)
7. now, remove the --variations-pr=1123 parameter
8. relaunch Brave
9. wait 10+ seconds (preferably more)
10. open brave://version`

Actual result

In brave://version, it shows:

Variations Seed Type is Null

Expected result

Since the production Griffin seed was restored, there should be the usual litany of Active Variations studies listed, instead:

Reproduces how often

Easily reproduced

Brave version (brave://version info)

Brave | 1.69.108 Chromium: 127.0.6533.43 (Official Build) nightly (64-bit)
-- | --
Revision | d5e7dd710a027aa197965d0603ec587791be032e
OS | Windows 10 Version 22H2 (Build 19045.4651)

Channel information

• release (stable)
• beta
• nightly

Reproducibility

• with Brave Shields disabled
• with Brave Rewards disabled
• in the latest version of Chrome

Miscellaneous information

cc @goodov @brave/qa-team @rebron

[goodov]

This is because of brave/brave-core#24550

[kjozwiak]

The above requires 1.68.124 or higher for 1.68.x verification 👍 @brave/qa-team this will get verified/checked while running through #39689 using the template from brave/brave-core#24604 (comment). For example, the above is covered in the following tests via brave/brave-core#24604 (comment):

• Desktop --> Test Case #4 - ensuring https://variations.brave.com/seed is being restored - PASSED
• Android --> Test Case #3 - ensuring https://variations.brave.com/seed is being restored - PASSED

[stephendonner]

As @kjozwiak mentions in #39767 (comment), this was tested and verified in #39689 (comment), specifically Test Case #4 - ensuring https://variations.brave.com/seed is being restored

[btlechowski]

Verified with

Brave	1.68.124 Chromium: 127.0.6533.57 (Official Build) (64-bit)
Revision	d048917c488542dc56e67059011b2cf9d6043bb9
OS	Linux

Verified in #39689 (comment)

[MadhaviSeelam]

Verification PASSED using

Brave | 1.68.124 Chromium: 127.0.6533.57 (Official Build) (64-bit)
-- | --
Revision | d048917c488542dc56e67059011b2cf9d6043bb9
OS | Windows 11 Version 23H2 (Build 22631.3880)

Verified via #39689 (comment)