To store the data, I used the following api：
- (nullable UIPasteboard *)pasteboardWithName:(UIPasteboardName)pasteboardName create:(BOOL)create
The official document says that starting from iOS10, clipboard data does not support persistence, but from the test practice, I use this clipboard to save the data always exists, no matter uninstall and reinstall the APP, restart the phone, or even update the system, then what scenarios may lead to the clipboard data is deleted, using this scheme to store data is reliable?