When a v3 descriptor is uploaded, it goes through a series of validation including `encrypted_data_length_is_valid()` which checks for the encrypted data size to be a multiple of `#define HS_DESC_PLAINTEXT_PADDING_MULTIPLE 128` but it's not true anymore becase we pad up to a minimum of 10000 bytes. This is currently fixed upstream but wasn't backported to 030. It has been introduced in tor-0.3.0.1-alpha with commit cff1fd63f16.