Clipboard is pasted automatically when closing a thread

[jermg]

Slide version: 6.7.1
Android version: 12

To reproduce:

1. In Slide, open a threads comments so that you have the "back arrow" on the upper left
2. Switch applications
3. Select and copy text so it is on your clipboard
4. Switch applications back to Slide
5. Click the back arrow or swipe right to close the thread

Results:
A notification appears indicating that Slide has pasted your clipboard.