During my current tests I stumbled over the following.
I have a server "test.tianet.de". I created two sub-servers "test5.test.tianet.de" and "test6.test.tianet.de". For both, I turned on "BIND Domain", "Website" and "SSL Website". Also (don't know if this is relevant) I auto-assigned an IPv6 address to both.
So far, all okay. "Configure Website" is pointing to test5 and test6 correctly.
Now, I rename test5 to test7. Oops, "Configure Website" for test7 is now pointing to the dialog for test6! URLs are the same too:
https://lyra.tianet.de:10000/apache/virt_index.cgi?virt=348 for both test7 and test 6 in my case.
Then I renamed test6 to test8. "Configure Website" URL for test8 stays the same as before.
"virt=" numbers for the SSL Website are one higher than the non-SSL ones, in case that info helps.