When using defineModel and setting the same value, the parent set event will not be triggered.

[masterYi2333]

Vue version

3.5.13

Link to minimal reproduction

https://play.vuejs.org/#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

Steps to reproduce

click

What is expected?

The same value also triggers the set event

What is actually happening?

Set not triggered

System Info

No response

Any additional comments?

The results of the two modification methods are inconsistent. I'm not sure if this is a bug, but they were consistent in versions <=3.4.31. The scenario is that my set event performs other actions, and I don't care whether the value has changed or not.

Related discussion

[yangliguo7]

core/packages/runtime-core/src/helpers/useModel.ts

Lines 61 to 64 in 21f8d9d

	if (
	!hasChanged(emittedValue, localValue) &&
	!(prevSetValue !== EMPTY_OBJ && hasChanged(value, prevSetValue))
	) {

when using useModel and the data unchanged, the data will not be triggered. This is inconsistent with emit

I'm not sure if we should emit when the data hasn't changed.

If there is a definite conclusion, I can fix this problem

[edison1105]

related #11162 #11125