Harden contribution flow

[NejcZdovc]

We got some reports that contribution flow is triggered multiple times where user only triggered it once.

So we should check multiple places:

• contribution query
• transaction retry
• make sure that at no point we add new current reconcile to the list except if user/ac triggers it

Reports:

• Brave rewards shows thousands of errors that increase with every process relaunch #6867
• @bbondy experienced this as well

cc @Brave-Matt if you have any more reports about this one

[kjozwiak]

Removing QA/Blocked as this was merged into 1.2.x as per brave/brave-core#4285 and added into https://github.com/brave/brave-browser/releases/tag/v1.2.40.

[LaurenWags]

Verified passed with

Brave	1.2.40 Chromium: 79.0.3945.88 (Official Build) (64-bit)
Revision	c2a58a36b9411c80829b4b154bfcab97e581f1f3-refs/branch-heads/3945@{#954}
OS	macOS Version 10.14.6 (Build 18G103)

• Verified test plan from Ac spent brave-core#4132
• Confirmed AC contributed as expected (wallet balance decreased accordingly, AC was recorded in wallet panel on brave://rewards)
• Confirmed monthly recurring tips were contributed as expected (wallet balance decreased accordingly, tips were recorded in wallet panel on brave://rewards)
• Confirmed one time tips were contributed as expected (wallet balance decreased accordingly, tips were recorded in wallet panel on brave://rewards)
• Confirmed on both staging and prod environments

Verification passed on

Brave	1.2.41 Chromium: 79.0.3945.88 (Official Build) (64-bit)
Revision	c2a58a36b9411c80829b4b154bfcab97e581f1f3-refs/branch-heads/3945@{#954}
OS	Ubuntu 18.04 LTS

• Verified test plan from Ac spent brave-core#4132
• Confirmed AC contributed as expected (wallet balance decreased accordingly, AC was recorded in wallet panel on brave://rewards)
• Confirmed monthly recurring tips were contributed as expected (wallet balance decreased accordingly, tips were recorded in wallet panel on brave://rewards)
• Confirmed one time tips were contributed as expected (wallet balance decreased accordingly, tips were recorded in wallet panel on brave://rewards)
• Confirmed on both staging and prod environments

Verification passed on

Brave	1.2.41 Chromium: 79.0.3945.88 (Official Build) (64-bit)
Revision	c2a58a36b9411c80829b4b154bfcab97e581f1f3-refs/branch-heads/3945@{#954}
OS	Windows 10 OS Version 1803 (Build 17134.1006)

• Verified test plan from Ac spent brave-core#4132
• Confirmed AC contributed as expected (wallet balance decreased accordingly, AC was recorded in wallet panel on brave://rewards)
• Confirmed monthly recurring tips were contributed as expected (wallet balance decreased accordingly, tips were recorded in wallet panel on brave://rewards)
• Confirmed one time tips were contributed as expected (wallet balance decreased accordingly, tips were recorded in wallet panel on brave://rewards)
• Confirmed on both staging and prod environments
  

[wizonesolutions]

Is there a way to fix excessive contribution retries one-time, basically to reset the number if it has gotten really high due to the old bug? Besides closing the popup. 9,000x :) Cc @NejcZdovc

[NejcZdovc]

@wizonesolutions will fix it in #7239 to clear local storage. You will also need to do this step #6867 (comment)