Mojang clearly doesn't want candles on not full blocks, else they wouldn't have disabled them. It's not even possible to shift r click the not full block with a candle
like I said it's not about floating candles
This bug report wasn't about floating candles, it's about candles on not full blocks. It's completly ok if the float (like that) but Mojang disabled candles on not full blocks
It's because of the piston animation. while it is running the hitboxes are turned off