The values are deep-copied. A clipboard holding references into the live channel would
keep changing as the operator kept mixing, so what finally pasted would not be what was
copied — and it would only show up as a paste that mysteriously carried later edits.
Capture the selected parts of a channel.
The values are deep-copied. A clipboard holding references into the live channel would keep changing as the operator kept mixing, so what finally pasted would not be what was copied — and it would only show up as a paste that mysteriously carried later edits.