xinhuan * r57474 CowTip/CowTip.lua:
CowTip: Insert a 3-line hack so that Talismonger-3.0 will start recording nodes for Cartographer_Mining/Herbalism/Fishing again when "Hide Immediately" option is used in CowTip_Fade on World Objects or when "Never" or "Out of combat" option is used in CowTip on World Objects for showing tooltips.
As for TipBuddy, I can't fix it because it isn't a wowace addon. Please tell the author that when he hooks GameTooltip to :Hide() it for any reason, he needs to restore the text in GameTooltipTextLeft1 after the :Hide() is performed (either by hooking OnHide or otherwise) so that Talismonger-3.0 can read the value in it to record the node.
There is no other reliable way to record a node other than by scanning the tooltip to determine what kind of object is being harvested and hiding it prevents that.