Merge bitcoin/bitcoin#25768: wallet: Properly rebroadcast unconfirmed transaction chains

3405f3eed5cf841b23a569b64a376c2e5b5026cd test: Test that an unconfirmed not-in-mempool chain is rebroadcast (Andrew Chow)
10d91c5abe9ed7dcc237c9d52c588e7d26e162a4 wallet: Deduplicate Resend and ReacceptWalletTransactions (Andrew Chow)

Pull request description:

  Currently `ResendWalletTransactions` (used for normal rebroadcasts) will attempt to rebroadcast all of the transactions in the wallet in the order they are stored in `mapWallet`. This ends up being random as `mapWallet` is a `std::unordered_map`. However `ReacceptWalletTransactions` (used for adding to the mempool on loading) first sorts the txs by wallet insertion order, then submits them. The result is that `ResendWalletTranactions` will fail to rebroadcast child transactions if their txids happen to be lexicographically less than their parent's txid. This PR resolves this issue by combining `ReacceptWalletTransactions` and `ResendWalletTransactions` into a new `ResubmitWalletTransactions` so that the iteration code and basic checks are shared.

  A test has also been added that checks that such transaction chains are rebroadcast correctly.

ACKs for top commit:
  naumenkogs:
    utACK 3405f3eed5cf841b23a569b64a376c2e5b5026cd
  1440000bytes:
    reACK https://github.com/bitcoin/bitcoin/pull/25768/commits/3405f3eed5cf841b23a569b64a376c2e5b5026cd
  furszy:
    Late code review ACK 3405f3ee
  stickies-v:
    ACK 3405f3eed5cf841b23a569b64a376c2e5b5026cd

Tree-SHA512: 1240d9690ecc2ae8d476286b79e2386f537a90c41dd2b8b8a5a9c2a917aa3af85d6aee019fbbb05e772985a2b197e2788305586d9d5dac78ccba1ee5aa31d77a

1 files changed, 4 insertions, 4 deletions

diff --git a/src/wallet/rpc/backup.cpp b/src/wallet/rpc/backup.cpp
index 4c623fa1ba..35df151e84 100644
--- a/src/wallet/rpc/backup.cpp
+++ b/src/wallet/rpc/backup.cpp
@@ -295,7 +295,7 @@ RPCHelpMan importaddress()
         RescanWallet(*pwallet, reserver);
         {
             LOCK(pwallet->cs_wallet);
-            pwallet->ReacceptWalletTransactions();
+            pwallet->ResubmitWalletTransactions(/*relay=*/false, /*force=*/true);
         }
     }
 
@@ -476,7 +476,7 @@ RPCHelpMan importpubkey()
         RescanWallet(*pwallet, reserver);
         {
             LOCK(pwallet->cs_wallet);
-            pwallet->ReacceptWalletTransactions();
+            pwallet->ResubmitWalletTransactions(/*relay=*/false, /*force=*/true);
         }
     }
 
@@ -1397,7 +1397,7 @@ RPCHelpMan importmulti()
         int64_t scannedTime = pwallet->RescanFromTime(nLowestTimestamp, reserver, true /* update */);
         {
             LOCK(pwallet->cs_wallet);
-            pwallet->ReacceptWalletTransactions();
+            pwallet->ResubmitWalletTransactions(/*relay=*/false, /*force=*/true);
         }
 
         if (pwallet->IsAbortingRescan()) {
@@ -1691,7 +1691,7 @@ RPCHelpMan importdescriptors()
         int64_t scanned_time = pwallet->RescanFromTime(lowest_timestamp, reserver, true /* update */);
         {
             LOCK(pwallet->cs_wallet);
-            pwallet->ReacceptWalletTransactions();
+            pwallet->ResubmitWalletTransactions(/*relay=*/false, /*force=*/true);
         }
 
         if (pwallet->IsAbortingRescan()) {