Mistakenly ,Replacing stream contents with workspace or component contents
One answer
Commonly, when you replace a component configuration in a stream with something else, a "backup before replace" baseline is created for that component in that stream. To find that baseline for a given component in the stream, ask for the baseline history of that component. If that doesn't help, you'll probably need to specify what RTC release you are using, and what exact operations you performed (thorough which client).