[migration] Avoid unnecessary intermediary commit when migrating a schema
Those are low-hanging fruit following changes in ac74476d686c (Fix addition of
entity type including boundary constraints on its own attributes): this is no
more necesary to commit the get a new relation type definition in the schema.
At some point we could/should probably do more on this topic to avoid
intermediary commit on e.g. entity type addition, but this requires more work.
addressbook
basket
blog
book
calendar
comment
company
email
file
folder
i18ncontent
keyword
link
mailinglist
person
tag
timeseries
vcsfile