`claimed_at` db timestamp value resets to zero after sending one time or recurring tip

Description

Found while testing https://github.com/brave/brave-browser/issues/7297

claimed_at db timestamp value resets to zero after sending one time or recurring tip

Steps to Reproduce

1. Clean profile 1.4.x launch brave using brave.exe --rewards=staging=true
2. Enable rewards
3. Open publisher_info_db and check promotion shows claimed_at value as 0 (expected)
4. Claim UGP grants in browser
5. Repeat step 3 and make sure claimed_at value shows UGP grants claimed timestamp
6. Send a one-time tip or recurring tip to a verified pub
7. Repeat step 3, claimed_at value resets to 0

Actual result:

Before claiming UGP grants: Just enable rewards After claiming UGP grants: After setting one-time or recurring tip

Expected result:

claimed_at db timestamp value should not reset to zero after sending a one-time tip or recurring tip

Reproduces how often:

Always

Brave version (brave://version info)

Brave	1.4.84 Chromium: 80.0.3987.87 (Official Build) beta (64-bit)
Revision	449cb163497b70dbf98d389f54e38e85d4c59b43-refs/branch-heads/3987@{#801}
OS	Windows 10 OS Version 1803 (Build 17134.1006)

Version/Channel Information:

• Can you reproduce this issue with the current release? NA
• Can you reproduce this issue with the beta channel? Yes
• Can you reproduce this issue with the dev channel? Yes
• Can you reproduce this issue with the nightly channel? Yes

Other Additional Information:

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

Miscellaneous Information:

cc: @brave/legacy_qa @NejcZdovc @rebron @bsclifton

[GeetaSarvadnya]

The issue is reported in 1.4.x. The PR https://github.com/brave/brave-core/pull/4202 is not merged in 13.116 hence moving the issue out of 1.3.x hotfix.

[GeetaSarvadnya]

Verification passed on

Brave	1.4.93 Chromium: 80.0.3987.116 (Official Build) (64-bit)
Revision	dc00a510e4c2ae25c4d084cc3d946fc782249224-refs/branch-heads/3987@{#917}
OS	Windows 10 OS Version 1803 (Build 17134.1006)

• Verified the STR from the description

Before claiming UGP grants:

After claiming UGP grants:

After setting a one-time or recurring tip

• Verified the test plan from https://github.com/brave/brave-core/pull/4602
• Once the appropriate changes were made as per the STR, ensured that the following request was made once the browser was restarted:

[ REQUEST ]
> url: https://grant.rewards.bravesoftware.com/v1/promotions/reportclobberedclaims
> method: UrlMethod::POST
> content: {"claimIds":["c20c16bf-5ce9-4f7f-946a-28e15fa5c1e7"]}
> contentType: application/json; charset=utf-8
[ END REQUEST ]

Also ensured that both the promotion and promotion_creds tables were empty in publisher_info_db once the browser was restarted.

---

Verification passed on

Brave	1.4.93 Chromium: 80.0.3987.116 (Official Build) (64-bit)
Revision	dc00a510e4c2ae25c4d084cc3d946fc782249224-refs/branch-heads/3987@{#917}
OS	Linux

• Verified the STR from the description

Before claiming UGP grants:

After claiming UGP grants:

After setting a one-time or recurring tip

• Verified the test plan from https://github.com/brave/brave-core/pull/4602

---

Verification PASSED on macOS 10.15.3 x64 using the following build:

Brave	1.4.93 Chromium: 80.0.3987.116 (Official Build) (64-bit)
Revision	dc00a510e4c2ae25c4d084cc3d946fc782249224-refs/branch-heads/3987@{#917}
OS	macOS Version 10.15.3 (Build 19D76)

• Verified the STR outlined via https://github.com/brave/brave-browser/issues/8180#issue-563186175

Before claiming UGP & Ad grants:

After claiming UGP & Ad grants:

After tipping 10 BAT: