Maintain to/cc/bcc state on rotation

The tokenized string was never updated after being initially set,
even if the backing values changed.

Additionally, the to/cc/bcc values were never updated once the
Message was initially created.

Bug: 7490394
Change-Id: Iae1c8ae88f9ab5b8e2e7fe10835587b61decf0c8
7 files changed