Logical system on source has changed after client copy

Hi,

we faced a strange situation on our ERP system. We performed a client copy from 100 to 210, after the client copy finished we saw the logical systems at SCC4 has changed at the 100, it change to SIDCLNT210. The original was SIDCLNT100. And the target has been changed to SIDCLNT210 as well. My question is: why the Logical System changed at the source client? I think it is not the normal behavior of the client copy method.

We faced the same situation at an another system at an another customer.

Our systems is a NW7.40 ECC6 EHP7 at latest SP level.