Can i update many times in one event via signals?

[teemoGod (teemo park)]

i want to update multiply in one action

for example, i expected updated 2 times when double click 1 time.

 {
      "name": "CallerQuery", "value": "",
      "on": [
        {
          "events": "@callerFilterButton:click!",
          "update": "datum.caller.key"
        },
        {
          "events": "dblclick",
          "update": "'1'"
        },
        {
          "events": "dblclick",
          "update": "'2'"
        }
      ],
      "bind": {
        "input": "text",
        "placeholder": "search caller",
        "autocomplete": "off"
      }
    }

there is 3 events.
first is 'click' about @callerFilterButton label
second is 'dblclick' and value will be changed to '1'.
third is 'dblclick' and value will be changed from 1 to 2.

what i expected that CallerQuery's value must to change to 2 after changed 1.

but actually, second event is ignored.
when i double clicked, value had changed to 2 directly.

can i update value twice in one event?
it must to be changed 1 first, and then changed 2 second.

and i tried following setting too, but this is invalid conf.

 {
      "name": "CallerQuery", "value": "",
      "on": [
        {
          "events": "@callerFilterButton:click!",
          "update": "datum.caller.key"
        },
        {
          "events": "dblclick",
          // this is invalid 
          "update": ["'1'", "'2'"]
        }
      ],
      "bind": {
        "input": "text",
        "placeholder": "search caller",
        "autocomplete": "off"
      }
    }