[TYPO3-v4] Please review change for issue #21102 IRRE: Selected items not removed from selector when foreign_unique is set

[Stanislas Rolland]

Hi,

Please review this change: http://review.typo3.org/8892

Problem:
When an inline field is defined as unique (foreign_unique is set), 
selected items are removed neither from the inline record selector, nor 
from the children record selectors.

Solution:
Remove the used records from all selectors. Also, when updating and 
collapseAll is set, remove records already used from the child record 
after its ajax-retrieval/expansion.

How to reproduce and test:
1. Install extension with key: bug_15400 attached to issue 
http://forge.typo3.org/issues/21102.
2. On some page:
- insert a few "Bug 15400 Record of type 2";
- insert a "Bug 15400 Record of type 1" and create some relations:
the used records should be removed from the selector of the
parent record and from the selectors of the children records.
3. The same behaviour should happen when updating "Bug 15400 Record of
type 1":
- on expanding a child, the selector should not contain records
already used in other children.

Regards,
Stanislas