Textpattern CMS support forum
Re: Can I narrow searches to only articles with certain tags?
philwareham wrote #324209:
However I’ve realised I need to allow results to also appear if custom fields are unset (i.e. the version is unverified at the moment). The above code only seems to allow results if one or both of those custom fields have values – not if they are both blank (I get no results).
I don’t think there is a general consensus on whether
unset > 4.7 or not, so it would be risky to interpret it in core. We need some other syntax to say