[BUG] Internal discord reconnecting can cause memory to spike while reloading every thread

[lorenzo132]

Describe the bug
A clear and concise description of what the bug is.

Bot Info
Bot version (check with @modmail about): 3.9.4
Host method (Heroku, self-host, etc): VPS

To Reproduce
Steps to reproduce the behavior:

1. Who can reproduce (ex. anyone, owners)? hoster
2. Where can it be reproduced (ex. in thread channels, recipient DM's)? Hosting device
3. Done what to cause the error? start the bot and watch
4. Any recently made changes to your bot? no changes were made
5. Errored

Screenshots
https://usagi.移动/OM4pCN

[fourjr]

Resolved in v3.10.0-dev5