At the moment
Pattern: `*.*.example.com`
Host: `test1.test2.example.com`

Iteration 1 wildcard.offset is 0
Pattern becomes: `*.example.com`
Host becomes: `test2.example.com`

Iteration 2 wildcard.offset is 1
Pattern becomes: `*.com`
Host becomes:  `test2.com`

The correct outcomes would be
Pattern: `example.com`
Host: `example.com`