Input Fallback Value is not merged on Input::merge()

[Maks3w]

I think the fallback value should be replaced when merge is done.

[svycka]

I think this is bug not a BC break. I don't think someone is relying on current behavior. But yes also it can be BC break, but very unlikely. This is not documented, no tests.. so I think we don't need to wait till 3.0

[zluiten]

Imho the intended behavior of merge is to also take care of the fallback value. Therefore this qualifies as a bugfix. I really would like to see this fixed asap.

        if ($input instanceof Input && $input->hasFallback()) {
            $this->setFallbackValue($input->getFallbackValue());
        }

ping @Maks3w

[Maks3w]

Fallback feature and merge method exists since a long time and nobody appreciate this before. My conclusion any change in the current behavior introduces a BC break.

[weierophinney]

This repository has been closed and moved to laminas/laminas-inputfilter; a new issue has been opened at https://github.com/laminas/laminas-inputfilter/issues/12.