Check the wording on the bill... I think that isn't actually allowed.
I seem to remember that your rent in Jan 2020 must be lowered to what it was in March 2019.
Edit: text from https://leginfo.legislature.ca.gov/faces/billNavClient.xhtml...
"...The bill would provide that these provisions apply to all rent increases occurring on or after March 15, 2019. The bill would provide that in the event that an owner increased the rent by more than the amount specified above between March 15, 2019, and January 1, 2020, the applicable rent on January 1, 2020, shall be the rent as of March 15, 2019, plus the maximum permissible increase, and the owner shall not be liable to the tenant for any corresponding rent overpayment..."