The bug
When right-clicking a flower pot to retrieve the plant, the item will always go into the selected ("mainhand") slot, even if there is an existing stack of that item.
Steps to reproduce
Place a flower pot
Put a flower into that flower pot
(Optional) Switch into survival mode
Make sure you have one of the flower in your hotbar, and an empty hand
Right-click the flower pot
Observed behaviour
The flower has goes into the player's hand
Expected behaviour
The flower would join the already-existing stack
Notes
Linked issues
relates to 4
MC-267925
Retrieving an item from a flower pot while holding something causes the item to end up in your off hand
Resolved
MC-193010
Cannot take flower from flower pot when player has the same flower in their hand
Open
MC-249735
Retrieving items from allays in creative mode grants the held item even if it's already present in your inventory
Open
MC-262529
Collecting books from chiseled bookshelves in creative mode grants the book even if it's already present in your inventory
Resolved
Comments 5
Could be fixed by just making the flower drop at the pot's location instead, as is done for berries, as well as shearing beehives/pumpkins.
Relates to MC-193010
Discovered while testing MC-231743