DB Consistency (internal hyperlinks)

[quant]

1. how can user search for hyperlinks to a given item? At the moment I search only for a text string matching item's title, which is not robust for several reasons (links can be renamed, strings that are not links are found, ...). Please, provide this feature

2. when deleting an item, the links that point to this item (contained in other items' body) become dead links. Could user be warned about this? Otherwise, db becomes inconsistent with various dead links pointing to nowhere.

Thank you