Can't submit contribution online form for 0 amount

I have a membership with 0 fees and profile with some required fields. On Main page i fill in all the required fields and select 0 fee option and click review contribution button. On Confirmation screen the profile section is blank against the fields. When submitting it throws validation error as required.

Running 6.5.3 on civi 5.28 Could also replicate on dmaster.

Note from MJW: Could reproduce this on contribution page when Membership fee is 0 and confirmation page is enabled.