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Fix race condition in translation loading (#7597)

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Adam Ernst 2020-11-05 11:47:09 -06:00 committed by GitHub
parent 9a3a7c28f4
commit 461b86a04b
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1 changed files with 7 additions and 1 deletions
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8
src/state/translations-mixin.ts
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@ -221,9 +221,15 @@ export default <T extends Constructor<HassBaseEl>>(superClass: T) =>
// loaded resources. This merges the new data on top of the old data for
// this language, so that the full translation set can be loaded across
// multiple fragments.
//
// Beware of a subtle race condition: it is possible to get here twice
// before this.hass is even created. In this case our base state comes
// from this._pendingHass instead. Otherwise the first set of strings is
// overwritten when we call _updateHass the second time!
const baseHass = this.hass ?? this._pendingHass;
const resources = {
[language]: {
...this.hass?.resources?.[language],
...baseHass?.resources?.[language],
...data,
},
};