The patch notes for Snapshot 22w33a state that going forward, "Any item or block which can be crafted must inherit the highest rarity of its crafting ingredients". Lingering Potions/Tipped Arrows are made using Dragon's Breath, which is Uncommon, yet they are Common.
MC-275287
Lingering Potions/Tipped Arrows don't inherit rarity from Dragon's Breath
Open
9
Actually Tipped Arrows are made from Lingering Potions so those should inherit the rarity which gets passed to the arrow. I've updated the report to reflect this