Record deletion without checking the attached records

[NicolasLabat]

When deleting a record to which other records are attached, eg : organisation with members, bib records with items. The attached records are automatically deleted with the main record without any warning message.

[NicolasLabat]

We get an "Internal server error"when trying to delete a bib record to which one or several items are attached.
After that, when we go back to the items in order to delete them, we get the same "Internal server error" (this error message doesn't appear if we delete first the items without having tried to delete the bib record with attached items).

[rerowep]

solved with: 2809cfc