Tab groups are reset after app upgrade

[Uni-verse]

Description

Tab Group are reset when upgrading app

Steps to reproduce

1. Clean install with Chromium 98 (v1.37.42)
2. Open some tabs
3. Create a tab group(s)
4. Update to app with Chromium 99 (v1.37.66)
5. Observe tabs when app relaunches

Actual result

Tab are not grouped

Expected result

Tabs should still be grouped

Issue reproduces how often

Easily

Version/Channel Information:

• Can you reproduce this issue with the current Play Store version?
• Can you reproduce this issue with the current Play Store Beta version?
• Can you reproduce this issue with the current Play Store Nightly version?

Device details

• Install type (ARM, x86): ARM
• Device type (Phone, Tablet, Phablet): Samsung GS 21 5G
• Android version: 12

Brave version

1.37.66, Chromium 99.0.4844.35

Website problems only

• Does the issue resolve itself when disabling Brave Shields?
• Does the issue resolve itself when disabling Brave Rewards?
• Is the issue reproducible on the latest version of Chrome?

Additional information

[Uni-verse]

Update: this is not specific to C99, able to repro when upgrading on C98 builds.

[tzugen]

I can't even enable the tab groups at all anymore...

[carun]

Same here, I can't see an option to enable or disable tab groups.