Bug Report. Message which has replies can not be deleted

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**[Problem/Question]**
// Detailed description of issue.
Message which has replies, can no be deleted.
---
// If problem, please fill out the below. If question, please delete.
**[UIKit Version]**
// What version of the SDK are you using?
The version you use at sendbird.com/products/demos/community

**[Reproduction Steps]**
// Please provide reproduction steps and, if possible, code snippets. 
This is the video with reproduction youtu(dot)be/nvnCXUssWGo

**[Frequency]**
// How frequently is this issue occurring? 
Always

**[Current impact]**
// How is this currently impacting your implementation? 
Significantly
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This is not a problem, and is expected. The replies must first be deleted.