Roth 457 Direct Rollover to Roth IRA - Distribution Tax Implications

I have a Roth 457 through my government job that I will be leaving soon. I also have a personal Roth IRA account. I have only made post-tax contributions to each and both accounts are more than 5 years old. I am under 59.5 years old.

 

If I do a direct rollover of the Roth 457 to the Roth IRA, can I then withdraw the post-tax contributions I made to both accounts tax and penalty-free? My understanding is that Roth withdrawals follow ordering rules where contributions are distributed first and tax-free at any time. Would that apply to the contributions originally made to the Roth 457 once they are rolled over into the Roth IRA?