When closing a collaboratively edited document, the dialog which asks me whether I want to save my unsaved changes appears, but I cannot really save (of course). This could seriously confuse and scare users, since they'd be unsure whether their changes were actually saved on the server/the other person's machine. The dialog should be suppressed, since there is nothing to save.
I'm a bit unsure, because if you e.g. initiate the connection using ktp, if both people close the document without saving a copy it will be sort of gone. Yes, there's a copy in some obscure temp directory (until you reboot), but that is not transparent to almost all users. I agree that the current behaviour is very bad, but I'm unsure what else to do, especially since I cannot easily display a different dialog for technical reasons. Currently -- maybe that changes with Kate 5, I will have to investigate.
When the document is stored on a server, the dialog should not show up for anyone, since the document is automatically updated on the server. If someone creates a document locally and then shares it, then the person who initially created the document should get the dialog, the other person shouldn't (I assume it's most likely that the person creating the document is most likely the one who wants to save it).
Ok, that would make sense. It's sort of impossible to do though with the current architecture (the part of the program creating the dialog is a plugin for just the editor widget and knows nothing except for "I will now open this URL"). I'll leave it open and see what I can do in the 5 port, there it will become somewhat more powerful. Thanks for your thoughts on this.
Is this still maintained by anybody?
No, it was never ported to KTextEditor 5.x or Qt5.
Sorry, this is no longer maintained, even the base for this, Telepathy is not ported nor maintained.