fix(runtime-core): fix event listener as dynamicProp is added erroneously to props

[iwusong]

when event listener as dynamicProp on updateProps, it is added to the instance’s props and it can be implicit binded to other components again by "v-bind=$props". it maybe trigger the callback function multiple times.

close #5520

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[LinusBorg]

A real reproduction would be helpful for us, without having to search a long thread.

So far, I don't really get what problem this is supposed to be solving

[iwusong]

Reproduction https://jsfiddle.net/29xnkcoz/3/

A real reproduction would be helpful for us, without having to search a long thread.

So far, I don't really get what problem this is supposed to be solving

Vue SFC Playground https://sfc.vuejs.org/#eyJBcHAudnVlIjoiPHRlbXBsYXRlPlxuICA8UGFyZW50Q29tIHYtZm9yPVwiaSBpbiBbMV1cIiA6a2V5PVwiaVwiPlxuICAgIDxDaGlsZEl0ZW0gQGNsaWNrPVwibG9nKGkpXCI+YW55Q29udGVudDwvQ2hpbGRJdGVtPlxuICA8L1BhcmVudENvbT5cbjwvdGVtcGxhdGU+XG5cbjxzY3JpcHQgc2V0dXA+XG5pbXBvcnQgUGFyZW50Q29tIGZyb20gXCIuL1BhcmVudENvbS52dWVcIjtcbmltcG9ydCBDaGlsZEl0ZW0gZnJvbSBcIi4vQ2hpbGRJdGVtLnZ1ZVwiO1xuICBcbmZ1bmN0aW9uIGxvZyhpKSB7XG4gIGNvbnNvbGUubG9nKGkpXG59XG48L3NjcmlwdD5cbiIsImltcG9ydC1tYXAuanNvbiI6IntcbiAgXCJpbXBvcnRzXCI6IHtcbiAgICBcInZ1ZVwiOiBcImh0dHBzOi8vdW5wa2cuY29tL0B2dWUvcnVudGltZS1kb21AMy4yLjMxL2Rpc3QvcnVudGltZS1kb20uZXNtLWJyb3dzZXIuanNcIlxuICB9XG59IiwiQ2hpbGRJdGVtLnZ1ZSI6Ijx0ZW1wbGF0ZT5cbiAgPGJ1dHRvbiBAY2xpY2s9XCIoZSk9PiRlbWl0KCdjbGljaycsZSlcIiBzdHlsZT1cIndpZHRoOjMwMHB4XCIgdi1iaW5kPVwiJHByb3BzXCI+Y2xpY2sgbWUgdGVzdO+8jGxvb2sgYXQgdGhlIGNvbnNvbGU8L2J1dHRvbj5cbjwvdGVtcGxhdGU+XG48c2NyaXB0PlxuZXhwb3J0IGRlZmF1bHQge1xuICBuYW1lOiAnQ2hpbGRJdGVtJyxcbiAgaW5oZXJpdEF0dHJzOiBmYWxzZSxcbiAgcHJvcHM6IHt9LFxuICBlbWl0czogWydjbGljayddLFxufVxuPC9zY3JpcHQ+XG4iLCJQYXJlbnRDb20udnVlIjoiPHRlbXBsYXRlPlxuICA8ZGl2PlxuICAgIHt7IGNoYW5nZSB9fVxuICA8L2Rpdj5cbiAgPGRpdj5cbiAgICA8c2xvdD48L3Nsb3Q+XG4gIDwvZGl2PlxuPC90ZW1wbGF0ZT5cbjxzY3JpcHQ+XG5leHBvcnQgZGVmYXVsdCB7XG4gIG5hbWU6IFwiUGFyZW50Q29tXCIsXG4gIGRhdGEoKSB7XG4gICAgcmV0dXJuIHtcbiAgICAgIGNoYW5nZTogXCJiZWZvcmUgdXBkYXRlLGNsaWNrIHRyaWdnZXIgb25jZVwiXG4gICAgfVxuICB9LFxuICBtb3VudGVkKCkge1xuICAgIHNldFRpbWVvdXQoKCkgPT4ge1xuICAgICAgdGhpcy5jaGFuZ2UgPSBcImFmdGVyIHVwZGF0ZSxjbGljayB0cmlnZ2VyIHR3aWNlXCI7XG4gICAgfSwgNjAwMCk7XG4gIH1cblxufTtcbjwvc2NyaXB0PlxuIn0=