The Bug

The "on_unleash" trigger in entity component "minecraft:leashable" executes the given event twice in some cases.

Steps to Reproduce

Load the attached world "TestOnUnleash.zip" and leash the cow. The world includes an add-on which let the cow send a message in chat either when it gets leashed or unleashed.

"minecraft:leashable": {
    "soft_distance": 4.0,
    "hard_distance": 6.0,
    "max_distance": 10.0,
    "on_leash": {
        "event": "test:on_leash"
    },
    "on_unleash": {
        "event": "test:on_unleash"
    }
}

"events": {
    "test:on_leash": {
        "run_command": {
            "command": ["say on_leash"]
        }
    },
    "test:on_unleash": {
        "run_command": {
            "command": ["say on_unleash"]
        }
    }
}

Expected Result

The "on_unleash" message should be printed once when the cow is unleashed.

Observed Result

The "on_unleash" message is printed twice when the cow is unleashed in the condition described in the table above.