@input.once preventing the update of the input if used with v-model

[mcmillenb]

Version

2.4.2

Reproduction link

https://jsfiddle.net/vwtLfh2e/1/

Steps to reproduce

Type one character in the input

What is expected?

The character is added to the input, the value property is updated to reflect the change, and the setDirty method is called, setting isDirty to true

What is actually happening?

The setDirty method is called, but nothing is added to the input and the value does not update.

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After the first character entry into the input, the model binding works as expected. It seems that using @input.once="someMethod" is preventing the expected behavior of v-model.

Found via this StackOverflow question

[Kingwl]

the passive & capture modifier has this problem too

[Kingwl]

seems the fst callback ( input.once event handler ) modified the data and push a microtask (update) to the queue
the update task is execute before the 2nd callback (input event handler) and refresh the dom props sync
and the 2nd callback ( input event handler ) get the dom props (value) updated
and i have no idea to fix that🌚