Fixes queue not being deleted for split one time tip

Resolves brave/brave-browser#10176

Author: NejcZdovc

components/brave_rewards/browser/rewards_service_browsertest.cc

@@ -2958,11 +2958,11 @@ IN_PROC_BROWSER_TEST_F(
       contents(),
       "[data-test-id='activity-table-body'] tr:nth-of-type(1) "
       "td:nth-of-type(3)",
-      "20.000BAT28.60 USD");
+      "20.0BAT28.60 USD");
 
   rewards_service_browsertest_utils::WaitForElementToEqual(
       contents(),
       "[data-test-id='activity-table-body'] tr:nth-of-type(2) "
       "td:nth-of-type(3)",
-      "30.000BAT42.90 USD");
+      "30.0BAT42.90 USD");
 }

vendor/bat-native-ledger/src/bat/ledger/internal/contribution/contribution_tip.cc

@@ -5,6 +5,7 @@
 
 #include <utility>
 
+#include "base/guid.h"
 #include "bat/ledger/internal/contribution/contribution_tip.h"
 #include "bat/ledger/internal/ledger_impl.h"
 
@@ -74,6 +75,7 @@ void ContributionTip::ServerPublisher(
   queue_list.push_back(std::move(publisher));
 
   auto queue = ledger::ContributionQueue::New();
+  queue->id = base::GenerateGUID();
   queue->type = ledger::RewardsType::ONE_TIME_TIP;
   queue->amount = amount;
   queue->partial = false;