In older versions, EntityDamageEvent would not be called if the entity had just taken damage and was on its no damage ticks. I'm not sure exactly when this changed, but I think it was around 1.20-1.21.

How to reproduce:

The attached plugin (SpigotBugReport20241217-1.jar) sends the message "Entity damaged, no damage ticks: <int>" to the console when an entity is damaged.

1. Install the attached plugin.
2. Place a lava bucket.
3. Switch to Survival mode.
4. Jump into the lava and look at the console.

Expected result:

The plugin would only send the message to the console every time the player is damaged.

Observed result:

The plugin sends the message to the console for every tick the player is inside the lava, regardless of whether they can take damage.