### Summary When replying to a nested reply, app throws fatal error. ### Steps to reproduce - create test post - write comment - reply to the initial comment, continue hitting "reply" until eventually the app throws the error.  ### Platform information (Browser, device, system stats, screen size) ### What is the current *bug* behavior? (What actually happens) ### What is the expected *correct* behavior? (What you should see instead) ### Relevant logs and/or screenshots (Paste any relevant logs - please use code blocks (```) to format console output, logs, and code as it's very hard to read otherwise.) ### Possible fixes (If you can, link to the line of code that might be responsible for the problem)