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@@ -38,14 +38,11 @@ function updateDOMProps (oldVnode: VNodeWithData, vnode: VNodeWithData) {
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}
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}
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- // #4521: if a click event triggers update before the change event is
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- // dispatched on a checkbox/radio input, the input's checked state will
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- // be reset and fail to trigger another update.
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- // The root cause here is that browsers may fire microtasks in between click/change.
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- // In Chrome / Firefox, click event fires before change, thus having this problem.
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- // In Safari / Edge, the order is opposite.
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- // Note: in Edge, if you click too fast, only the click event would fire twice.
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- if (key === 'checked' && cur === oldProps[key]) {
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+ // skip the update if old and new VDOM state is the same.
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+ // the only exception is `value` where the DOM value may be temporarily
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+ // out of sync with VDOM state due to focus, composition and modifiers.
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+ // This also covers #4521 by skipping the unnecesarry `checked` update.
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+ if (key !== 'value' && cur === oldProps[key]) {
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continue
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}
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