Hello my dear reader!
Here I am again, requesting any help from anybody that could help me (huh... isn't that obvious?)
Welp, let's sink into the issue in this very insta:

Suppose we test this Hedgewars Lua Script, let's call it as "test.lua".
Which I designed to work this way: Every vgtHealthTag and vgtSmallDamageTag visual gear will be deleted upon creation so there's no message created when a hedgehog is damaged/etc BUT ONLY IF they're not 'approved' [local = GApprovedVG]. Then I try to make one 'approved' vgtHealthTag visual gear at onNewTurn() event. I expect this last created vgtHealthTag showed up, because I mark it as 'approved' by inserting a value into GApprovedVG[vgUid] = 100.
A better look at the code should help you wrap what I'm trying/how I try to do the things.
Please take look at the code below:

local GApprovedVG = {}

function onVisualGearAdd(vg)
	if GetVisualGearType(vg) == vgtHealthTag or GetVisualGearType(vg) == vgtSmallDamageTag then
		if vg and GApprovedVG[vg] == nil then
			DeleteVisualGear(vg)
		end
	end
end

function onNewTurn()
	local x,y = GetGearPosition(CurrentHedgehog)
	local vg = AddVisualGear(x, y, vgtHealthTag, 100, true)
	SetVisualGearValues(vg, nil, nil, nil, nil, nil, nil, nil, nil, nil, 0xffffffff)
	GApprovedVG[vg] = 100
end

And as you can see; I expect that vg created at onNewTurn() should be NOT deleted because the expression "vg and GApprovedVG[vg] == nil" clearly supposed to be false, thus there should be no deletion for any 'approved' vg. But yet, when I debug the expression boolean value, it returned true, but why? Well, I think the question why can be answered by my little hypothesis: "The vgUid reference value over a gear/visual gear isn't consistent through Hedgewars Lua system, or at least there's a problem with the vgUid referencing system itself". But well, that's doesn't make sense, right? Why would the vgUid reference system inconsistent? Or because there's something messed up inside? A problem, OR ISN'T IT? Well, tbh idk for sure, and that's why I bring this personal-little-trivial-issue here, to make sure my thought and to get the right answer...
Code Note: If you remove 'DeleteVisualGear(vg)' from the code above, you will find that the vgtHealthTag created at onNewTurn() showed up perfectly.
But for now, as my best guess and bet; I just simply messed things up myself here, thus rendering the said test.lua work improperly like it should be. I just wanted to know what's my mistake here, so yeah, don't hesitate to tell my mistake (if I had any) okay =) ?

I hope you could understand the issue of me in this post, especially I hope a dev could lend me a little hand on this trivial question, hehe.
Thanks ^^

PS: To gain the best clarity, please to consider testing on your own machine by copying the provided code above then run it in Hedgewars.

[Licensed as: CC-O]