"deals_damage" field doesn't work on player entity

I only provide a part of my JSON for this issue.

"minecraft:damage_sensor": {
        "triggers": [
          {
            "on_damage": {
              "filters": {
                "all_of": [
                  {
                    "test": "has_tag",
                    "subject": "self",
                    "value": "gm:blocking"
                  }
                ]
              },
              "event": "gm:blocking"
            },
            "deals_damage": "no"
          }
        ]
      }

See? The level of “deal_damage” is same to the sample in Allay.json

"minecraft:damage_sensor": {
  "triggers": [
    {
      "deals_damage": "no",
      "on_damage": {
        "filters": {
          "all_of": [
            {
              "subject": "other",
              "test": "is_family",
              "value": "player"
            },
            {
              "subject": "other",
              "test": "is_owner"
            }
          ]
        }
      }
    }
  ]
}

Still, it doesn’t work properly. If any of reviewers regard it as incorrect usage of coding, please prove it with your correct code that it’s not a bug, but not to simply close my request.

Steps to reproduce

1. Open a world with a pack contains the JSON part of mine

2. Type “/tag @s add gm:blocking” and enter in the chat box

3. Summon a zombie to attack you

Expected result

Anvil sound is played, no damage applied

Observed result

Anvil sound is played, damage is applied