Change Details

``` Return the failed block as an out var. This clarifies the outcome as the prior return value could be null due to user abort or failure. ``` Partial backport of core PR13076: https://github.com/bitcoin/bitcoin/pull/13076/commits/3002d6cf31821622e9f21d51e536cafc5cfb10ae Depends on D5561.

``` Return the failed block as an out var. This clarifies the outcome as the prior return value could be null due to user abort or failure. ``` Partial backport of core [[https://github.com/bitcoin/bitcoin/pull/13076 | PR13076]]: https://github.com/bitcoin/bitcoin/pull/13076/commits/3002d6cf31821622e9f21d51e536cafc5cfb10ae Depends on D5561.

``` Return the failed block as an out var. This clarifies the outcome as the prior return value could be null due to user abort or failure. ``` Partial backport of core [[https://github.com/bitcoin/bitcoin/pull/13076 | PR13076:]]: https://github.com/bitcoin/bitcoin/pull/13076/commits/3002d6cf31821622e9f21d51e536cafc5cfb10ae Depends on D5561.