Allow create getter/setter when member variable has a braced initializer

If you declare a member variable in some class like this:

int numChannels;

then the refactoring context menu will happily offer to create a getter and setter for you.

However, if you declare it with a braced initializer, like this:

int numChannels{2};

... the offer to create getter / setter is withdrawn.

Can the refactoring menu provide create / getter setter when the member variable declaration has a braced initializer, or is there some technical reason why this isn't possible ?