Object values on option elements are stringified when using slots

[peterfox]

Version

2.5.17

Reproduction link

https://jsfiddle.net/SlyFoxy12/eywraw8t/456496/

Steps to reproduce

Create a component with a slot which has select options passed to it that use objects. The options need objects applied for values, although I believe it will stringify the value no matter what is passed through.

What is expected?

Making a custom select element using a component with a select and a slot for the options should work with objects instead of providing the string value "[object Object]" on change.

What is actually happening?

Options passed to the component via a slot appear to get converted to a string when passed through a slot.

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Example JS Fiddle shows behaviour with a normal select control and a custom select control as described when the options are passed through to the select as a slot.

As you will see the select box behaves fine but the custom component always produces a "[object Object]" value.

[posva]

It's because you're emitting the value from the event instead of the value hold by v-model

this.$emit('change', this.selectedThing)

[peterfox]

@posva confirmed working now, thank you