Transaction is marked for rollback when CoreSession#getParentDocument throws an exception

Typically in the following code from AbstractDocumentBackedFileSystemItem (nuxeo-drive addon):

try {
            parentDoc = docSession.getParentDocument(doc.getRef());
        } catch (DocumentSecurityException e) {
            log.debug(String.format(
                    "User %s has no READ access on parent of document %s (%s), will throw RootlessItemException.",
                    principal.getName(), doc.getPathAsString(), doc.getId()));
        }

If docSession.getParentDocument() throws a DocumentSecurityException then the transaction is marked for rollback, which should not be the case, especially in a case like that where we want to catch this exception.

We should probably add @NoRollbackOnException to CoreSession#getParentDocument, and check if any other method would also need this annotation.