[Gameplay] shop shows things you cant buy as being able to buy

When i was in the shop and deciding what to buy i was noticed that i couldn't buy an item and realized i didn't have enough gold for it despite the shop saying i did.

The bug is that the item lights up as being buyable despite not being buyable

This is how to repeat it.

1. have an item that builds into something and sell it.
2. now if your total gold would allow you to buy the item you want if you hadn't sold your item and you click undo it lights up as being purchasable despite now not having enough gold.

(Ex). 1. You have 1500 gold and negatron cloak and sell it for 500 gold to get something else but then decide to get guardian angel instead. 2. You have 2000 gold now and click undo to get your cloak back and build GA.
with negatron cloak GA costs 1680. 3. so now you have 1500 gold negatron cloak and the shop says you are able to purchase GA with the item lighting up but you cant due to not having enough gold. in this case i also had a lost chapter so after getting my item back it said i could still purchase the morellonomicon (2000) despite not being able to due to not having enough gold.