[2.0.73] Reading elem_tooltip for virtual signal returns invalid table

[Shemp]

Sorry, this is a minor annoyance and I wasn't sure how to summarise it in the title. To reproduce:

Start any Factorio game world.

Run these commands:

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/c x = game.player.gui.center.add{type = "frame"}; x.style.height = 100; x.style.width = 100
/c x.elem_tooltip = {type = "signal", name = "signal-A", signal_type = "virtual"}

This creates a GUI element with an element tooltip corresponding to a virtual signal.

When you try to read the elem_tooltip, perhaps to make a copy of it elsewhere, you get this:

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/c game.print(serpent.block(x.elem_tooltip))

elem-tooltip-read.png (133.82 KiB) Viewed 192 times

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{
	name = "signal-A",
	signal_type = "virtual",
	type = "virtual-signal",
}

"virtual-signal" (NOT "signal") is not a valid ElemType for creating an elem_tooltip.

EDIT: Oh, just to be really clear, I expect this output:

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{
	name = "signal-A",
	signal_type = "virtual",
	type = "signal",
}

[boskid]

Thanks for the report. Issue is now fixed for 2.1.

As a workaround when reading ElemID if you get type="virtual-signal" (incorrect value), replace it with type="signal" (correct value).