> This fix is a based on the fix by Antoine Riard <ariard@student.42.fr> in
> https://github.com/bitcoin/bitcoin/pull/18600.
>
> Unlike that PR, which implements some new behavior, this just restores previous
> wallet notification and status behavior for transactions removed from the
> mempool because they conflict with transactions in a block. The behavior was
> accidentally changed in two `CWallet::BlockConnected` updates:
> a31be09bfd77eed497a8e251d31358e16e2f2eb1 and
> 7e89994133725125dddbfa8d45484e3b9ed51c6e from
> https://github.com/bitcoin/bitcoin/pull/16624, causing issue
> https://github.com/bitcoin/bitcoin/issues/18325.
>
> The change here could be improved and replaced with a more comprehensive
> cleanup, so it includes a detailed comment explaining future considerations.
>
> Co-authored-by: Antoine Riard <ariard@student.42.fr>
This is a backport of [[https://github.com/bitcoin/bitcoin/pull/18982 | core#18982]] [1/2]
Backport note: test modified to create conflicting transactions without using RBF & `bumpfee`
Depends on D9961