The Bug:
Some blocks have their breaking animations displayed outside of their models.
Here's a list of all affected blocks. Please note that this list may be incomplete.
Bamboo saplings
Activated conduits
Campfires and soul campfires
Heads and skulls
Amethyst crystals
Pointed dripstones
Calibrated sculk sensors
Sculk sensors
Sculk shriekers
Stonecutters
Banners
Brewing stands
Open shulker boxes
Ladders
Big dripleaves
Cobwebs
Hanging signs
Transparent pixels within doors
Transparent pixels within trapdoors
Transparent pixel within leaves
Transparent pixels within mangrove roots
Steps to Reproduce:
Place down any of the affected blocks as listed above.
Switch into survival mode, begin breaking them, and as you're doing this, look at their breaking animations closely.
Take note as to whether or not some blocks have their breaking animations displayed outside of their models.
Observed Behavior:
Some blocks have their breaking animations displayed outside of their models.
Expected Behavior:
All blocks would have their breaking animations displayed within their models.
Linked issues
is duplicated by 28
relates to 2
Attachments
Comments 37

Confirmed in 19w13b.
Confirmed in 1.14.3 pre-release 3.

Also happens on activated conduits underwater.

Does not happen with conduits underwater anymore in 19w41a. Although I'm having some issues in this snapshot with the breaking animation in general, maybe preventing proper testing of this.
This is still an issue for bamboo saplings. I have not noticed it anywhere else.
Can confirm that bamboo saplings are out of hitbox as of 1.19.2
As of 1.20.1 this also affects calibrated sculk sensors, and all three states of hanging signs.

I was playing on singleplayer when I noticed this, good to know that it has been reported.

In 1.20.3
"Bamboo", the image shows a "Bamboo Sapling", not Bamboo