The Bug:

Mangrove leaves can generate too far away from their trees' logs resulting in them sometimes being able to despawn.

Steps to Reproduce:

• Set the "randomTickSpeed" gamerule to "0" in order to stop the process of leaves decaying.

• /gamerule randomTickSpeed 0

• Using bone meal and mangrove propagules, grow several mangrove trees a fair distance away from one another.
• Face in the direction of the trees, watch the mangrove leaves closely, and set the "randomTickSpeed" gamerule to a high value in order to make leaves despawn at a noticeable and fast rate.

• /gamerule randomTickSpeed 300

• Take note as to whether or not mangrove leaves can generate too far away from their trees' logs resulting in them sometimes being able to despawn.

Observed Behavior:

Mangrove leaves can generate too far away from their trees' logs resulting in them sometimes being able to despawn.

Expected Behavior:

Mangrove leaves would not be able to generate too far away from their trees' logs.