Holy. Heck.
This is great—I’ve been bashing my head against the wall trying to figure out what was going on with this whole postmeta black-hole issue. I have encountered it with both ACF and another custom plugin which leverages postmeta to store supplementary content.
I’m off to test this immediately.
Is the WP community at large aware that this behaviour is occurring? I’ve done a bunch of poking around, but can’t find any formal documentation of this bug anywhere, but I can concur that it definitely exists.
