UPDB error with 4.0.0-beta6 upgrade

Problem/Motivation

Hoping this is minor: Something changed between 4.0.0-beta5 and 4.0.0-beta6, and running drush updb yields this:

[error]  The installed version of the /Image Field Caption/ module is too old to
update. Update to a version prior to
image_field_caption_post_update_apply_new_settings first (missing updates:
0).

Steps to reproduce

Composer update to 4.0.0-beta6 from either 4.0.0-beta5 or 3.0.1, maybe others (I haven't tested them).

The error goes away with a rollback to beta5, followed by drush updb.