Firestore - collectionChanges function not emitting empty array when not elements present in queried collection

**Angular:**
13.3.11

**Firebase:**
9.8.4

**AngularFire:**
7.4.1

**Other (e.g. Ionic/Cordova, Node, browser, operating system):**
Node: 14.19.0
Maxc OS: 12.3.1
Chrome (latest)

### How to reproduce these conditions

`
const elements = [1,2,3];
`

`
const surveyReferencesQuery = query(
collection(
this.afs,
'surveyReferences'
) as CollectionReference,
where('companyId', 'in', elements)
);`

`
return collectionChanges(
surveyReferencesQuery
).pipe(
tap((c) =>
console.log(
'collectionChanges',
c.map((s) => [
s.type,
s.doc.id,
s.doc.data(),
])
)
)
);`

### Expected behavior

Should emit empty array

### Actual behavior

Not emitting anything until documents in collection

從 collectionChanges 入口點開始，使用空的 surveyReferences 集合重現提供的 Firestore 查詢。將 observable 的初始行為與預期發出空陣列的行為進行比較；當查詢在相符的文件存在之前發出空陣列時，即表示完成。

由索引模型根據 Issue 內容生成。