entity_reference_revisions 8.x-1.0-rc6

Many updates since RC4, getting near to a stable.

As a major improvement, Entity Reference Revisions now can semantically maintain a composite relationship defined through entity annotation. A composite entity points to the parent / host entity and thus can only have one parent. Never reuse these entities.
This allowed us to simplify code, fix inconsistencies and implement many things that previously have been limited, complex or impossible.
Modules like Paragraph can now build on top of this and TMGMT automatically adds composite entities + fields to the host job item. Similarly other modules such as diff will be able to follow the semantics.

Also tests have been pushed to cover all the mentioned cases.

In detail...

HEAD -> 8.x-1.x, tag: 8.x-1.0-rc6, origin/8.x-1.x

• * c905632 - Issue #2704717 by yongt9412, Berdir: Remove special case on EntityFormatter for new entities (21 hours ago)
• * 4f86ca7 - Issue #2612802 by hchonov, yongt9412: target_revision_id property should be of type DataReferenceTargetDefinition (21 hours ago)
• * aaf82db - Issue #2675076 by yongt9412, hchonov, Berdir: EntityReferenceRevisionsItem::setValue has wrong conditions for which property to call onChange and onChange('entity') is not setting the revision id from the entity (30 hours ago)
• * 28198d1 - Issue #2702635 by yongt9412, Berdir: Implement EntityNeedsSaveInterface (2 days ago)

tag: 8.x-1.0-rc5

• * 405c06a - Issue #2429335 by yongt9412, danielbeeke, miro_dietiker: Deletion of referenced entities (7 weeks ago)
• * 3371230 - Issue #2672206 by Berdir: EntityReferenceRevisionsFormatterBase::prepareView() is blindly copied and lies (7 weeks ago)
• * ef9e2c1 - Issue #2674938 by rakesh.gectcr: Remove Unused imports (7 weeks ago)
• * 9ae531d - Issue #2641824 by yongt9412, miro_dietiker, Berdir: Maintain composite relationship (7 weeks ago)
• * e3e2205 - Issue #2673072 by yongt9412: Fix tests fails (7 weeks ago)
• * 0e7c506 - Issue #2658178 by snufkin: Incorrect documentation EntityReferenceRevisionsEntityFormatter::__construct() (2 months ago)