[2.x] At least return something when there is a value attached to the option

[Jade-GG]

see #519

[royduin]

Do you have a bit more info and a good squash commit message?

[Jade-GG]

Do you have a bit more info and a good squash commit message?

Some custom types of options (e.g. custom product options created by expivi) would not work well in the old situation---see the old PR linked in the message. Always attempt to decode attribute value is what that one was described as, which makes sense to me.