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Don't cache purged nodes that are focused on unmount #3144

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Don't cache purged nodes that are focused on unmount #3144

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6 changes: 6 additions & 0 deletions src/renderers/dom/client/ReactMount.js
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Original file line number Diff line number Diff line change
Expand Up @@ -317,6 +317,10 @@ function batchedMountComponentIntoNode(
* @see {ReactMount.unmountComponentAtNode}
*/
function unmountComponentFromNode(instance, container) {
// Unmounting a focused component causes a blur event to fire, so we want to
// suppress React event-listening during unmount.
var previouslyEnabled = ReactBrowserEventEmitter.isEnabled();
ReactBrowserEventEmitter.setEnabled(false);
ReactReconciler.unmountComponent(instance);

if (container.nodeType === DOC_NODE_TYPE) {
Expand All @@ -327,6 +331,8 @@ function unmountComponentFromNode(instance, container) {
while (container.lastChild) {
container.removeChild(container.lastChild);
}

ReactBrowserEventEmitter.setEnabled(previouslyEnabled);
}

/**
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