[potentially a bug] SimpleOrder: comparing BTC unit to USD unit

[spacegoing]

This part of logic is potentially a bug:

tensortrade/tensortrade/env/default/actions.py

Lines 261 to 266 in cc6bd19

	quantity = (size * instrument).quantize()
	if size < 10 ** -instrument.precision \
	or size < self.min_order_pct * portfolio.net_worth \
	or size < self.min_order_abs:
	return []

For a USD/BTC pair, when the side is sell, quantity is measured in BTC. However, or size < self.min_order_pct * portfolio.net_worth \ is comparing BTC against USD. Is this potentially a bug?

What is the purpose of this condition?

Many thanks!