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metamask-extension/app/scripts/migrations/035.js

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// next version number
/*
Removes the deprecated 'seedWords' state
*/
import { cloneDeep } from 'lodash'
const version = 35
export default {
version,
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async migrate(originalVersionedData) {
const versionedData = cloneDeep(originalVersionedData)
versionedData.meta.version = version
versionedData.data = transformState(versionedData.data)
return versionedData
},
}
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function transformState(state) {
if (
state.PreferencesController &&
state.PreferencesController.seedWords !== undefined
) {
delete state.PreferencesController.seedWords
}
return state
}