Tree inconsistency between Changes-generated and Snapshot-generated

[hackerwins]

What happened:

There is an inconsistency between the Tree generated by Changes and the Tree generated by Snapshot. Although each Tree is supposed to maintain isomorphism, two discrepancies have been identified:

1. size for index calculation in the XML representation of the Tree is different.
2. attributes are different.

What you expected to happen:

It is necessary for the values of Trees generated in these two different ways to be the same.

How to reproduce it (as minimally and precisely as possible):

Anything else we need to know?:

Environment:

• Operating system:
• Browser and version:
• Yorkie version (use yorkie version):
• Yorkie JS SDK version:

[hackerwins]

• JS SDK: https://github.com/yorkie-team/yorkie-js-sdk/pull/842
• Android SDK: https://github.com/yorkie-team/yorkie-android-sdk/pull/201
• iOS SDK: