Sorry, it took me awhile to completely trace this issue. It doesn't happen with every tank and I haven't gotten many reports of malfunctions in the field.
It looks like there is an easy fix that can be done with readily available bits. I'm going to document it as soon as I can. So far it looks like about $1 of hardware store fasteners can be used make a tool to fix the problem with Coleman tanks.
I do not know if the longer Bernzomatic type tanks have similar issues to the Coleman bottles.
Want nearly free GBB gas?