Discussion: Guide To class_tsid updates and overlaps

Hello,

Looking at some recent SDB sales data, I've seen class_tsids for both "potion_tree_poison_antidote" and "tree_poison_antidote". (Check SDB sales 208844500 and 20680745 for an example of each type of sale, both from October 2nd.) Both refer to Tree Poison Antidote, but both class_tsids seem to still be in effect.

I suspect that this overlap applies to many other class_tsids as well. Can we get a guide to these overlaps? While I might be able to derive one from SQL, a definitive guide would be a great help.
The tree_poison_antidote is the old version that is no longer available from the game but is still in circulation as a collector's item. The potion_ prefixed tsid's are for all the new potions.
Great! Thanks.