Support multi-operation migrations

[andrew-farries]

Migrations are composed of arbitrarily many operations, but with the limitation that a later operation in a migration cannot act on an object that has been created or modified by an earlier operation.

This limitiation severely impacts the usefulness of having multiple operations per migration.

It should be possible to compose arbitrary operations without this restriction.

This is a meta-issue tracking the various sub-issues required to support multi-operation migrations.

[akashwar]

Can you guys let us know the timeline you are targeting for fixing this issue in your v1 milestone? @andrew-farries

[gulcin]

Hello again @akashwar this issue is in progress, we are working on the sub-issues.