This may seem like an odd question...

I had just started a new project and was working on the first object. Accidently I pressed ctrl and V and suddenly I had pasted some objects from part of a completely different project (complete with their own 'pasted' layer) that I haven't even open for the last couple of weeks.

Does anyone know about this short key and how it works? How did I select these other objects - it's almost like I imported them but I haven't tried to import them before. Sorry if this is dumb. Just confused and curious...

thanks.