Drupal 8

The basis of this module was developed as part of Google Summer of Code 2016. See the project proposal here for an overview: https://summerofcode.withgoogle.com/archive/2016/projects/5655297389494272/

The module is currently providing a simple underlying API for handling revision conflicts in Drupal entities. A user interface is also planned to allow users to manage and solve conflicts in an easy way.

More info coming soon...

Drupal 7

This module allows parallel editing of nodes with field-level conflict detection and a trick to prevent accidental overwriting of fields when they are changed by another session while a node is being edited.

This behavior is useful for things like issue queues where multiple people might be following up to an issue simultaneously. The original problem that lead to this module is #1559578: D7 solution for when multiple users are updating an issue simultaneously.

It works by doing a 3-way comparison between the field data of the original node, the node as edited by us, and the node as edited by others.

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