Change Details

``` The value is: - currently unused, and useless without [[nodiscard]] - confusing, because it is always true, unless a num-string is set Instead of adding [[nodiscard]], throw when setting is not possible. ``` Backport of core#25736. Depends on D16283.

``` The value is: - currently unused, and useless without [[nodiscard]] - confusing, because it is always true, unless a num-string is set Instead of adding [[nodiscard]], throw when setting is not possible. ``` Backport of [[https://github.com/bitcoin/bitcoin/pull/25736 | core#25736]]. Depends on D16283.

``` The value is: - currently unused, and useless without [[nodiscard]] - confusing, because it is always true, unless a num-string is set Instead of adding [[nodiscard]], throw when setting is not possible. ``` Backport of [[https://github.com/bitcoin/bitcoin/pull/25736 | core#25736]]. Depends on D16283.