Commita7658e0

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fix(data): skip recursive call if values are identical (vuejs#8967)

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Lines changed: 5 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -55,7 +55,11 @@ function mergeData (to: Object, from: ?Object): Object {`
`55`	`55`	`fromVal=from[key]`
`56`	`56`	`if(!hasOwn(to,key)){`
`57`	`57`	`set(to,key,fromVal)`
`58`		`-}elseif(isPlainObject(toVal)&&isPlainObject(fromVal)){`
	`58`	`+}elseif(`
	`59`	`+toVal!==fromVal&&`
	`60`	`+isPlainObject(toVal)&&`
	`61`	`+isPlainObject(fromVal)`
	`62`	`+){`
`59`	`63`	`mergeData(toVal,fromVal)`
`60`	`64`	`}`
`61`	`65`	`}`

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