Placing turtle egg/sea pickle onto turtle egg/sea pickle while sneaking doesn’t place it next to it, although placing candle onto candle does

The bug

When you place a turtle egg onto a turtle egg while sneaking or a sea pickle onto a sea pickle while sneaking, you will add a sea pickle/turtle egg onto the block, however if you do that with candles, you will place it next to it instead of adding a candle to the block. This is inconsistent.

How to reproduce:

1. Place a turtle egg, a sea pickle and a candle
2. Start sneaking
3. Place a turtle egg by aiming onto the turtle egg
4. You add one turtle egg to the block
5. Place a sea pickle by aiming onto the sea pickle
6. You add one sea pickle to the block
7. Place a candle while aiming at the candle
   You will place a candle next to it.