The `cleardoublepage` option does not work

[vhbelvadi]

Branching out the second issue pointed out in #4 to make it easier to troubleshoot.

[vhbelvadi]

Update As of v3.0 the \cleardoublepage command itself works, but using cleardoublepage as a class option still does nothing. If necessary, therefore, please use \cleardoublepage manually as a workaround.