Cooldown Issue On Trinkets after trying to Undo purchase [GAMEPLAY]

When you change trinket types, the new item type goes on cooldown as intended. However, when you undo that purchase, it does not reset the cooldown of the previous type back to 0 (or whatever number it was at). So If I have the warding trinket in my inventory with 2 charges, and I accidentally click the lvl 9 red scanner instead of the lvl 9 blue ward, I now have the red scanner on a ~2min cooldown. When I hit undo to revert that mistake, my warding trinket is now on cooldown for that same ~2 min.

1. Start Game, buy warding trinket and leave the fountain (may have to fast forward until minions spawn, not sure)
2. Go back to fountain and buy the scanning trinket
3. Hit "undo"
4. Notice warding trinket is now on cooldown when it wasn't initially.

It seems like it just needs to be coded the same way guardian angel cooldown is. I can sell guardian angel and immediately buy a new one and it will still be on the same cooldown.