Refs #11727, also pass data store item as parameter to the callback when a row is being merged.
Refs #11727, also pass data store item as parameter to the callback when a row is being merged.

git-svn-id: ee6e786acc44c9cca5ee17c71a5576c45c210361@23665 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful