Question on store setting in a multi_field

With multi_fields setting, will the field be stored twice by default? Is there a need to set one field to store=no?

Ex.
"tweet":{
"type": "multi_field",
"fields": {
"tweet":{"type":"string", "index":"not_analyzed", "store":"yes"},
"tweet_analyzed":{"type":"string", "index":"analyzed", "store":"no"}
}
}

Thanks!