After NantesLabel in the cell of the message list page calls findCheckingResults of NSAttributedString, the memory usage starts to increase sharply until it crashes.

[Hjt830]

Describe the bug
When entering the chat page, the memory usage doubled. After using Instruments to analyze, it was found that the memory usage of nantesLabel in each cell began to increase after calling findCheckingResults of NSAttributedString.

To Reproduce
Steps to reproduce the behavior:

1. Go to chat page, there are many history text messages
2. every text message cell have a nantesLabel, it auto checkingText when set a text
3. the memory is growing up after call function findCheckingResults
4. then app was killed by operation system

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Nantes version: 0.1.2