Correct, here is the link: https://bst.cloudapps.cisco.com/bugsearch/bug/CSCuq45068/?rfs=iqvred
According to that bugnote it seems like it may be supported in 11.5, but I can't find a specific reference to that.
According to the Finesse installation and upgrade guide for 11.5(1)
"Choose the Finesse hostname, domain, and IP address carefully. After you install Finesse, you cannot change these values."
Please let me know if this helps.