Fix entry/blob update in a nuxeo-data-table

Pre-requisite: install the jar whose link is in the first comment

Steps to reproduce:

1. create a document SUPNXP-40959 (only fill the Title)
2. edit the document
3. Add an entry for the table "mesdonnees"
4. select a file, set a label and a date and click the button "ok" to save
5. Add another entry for the table "mesdonnees"
6. select a different file, set a different label and date and click the button "ok" to save
7. edit the first line
8. observe that the file name corresponds to the second entry

Another bug related to this one:

after step 6, click to add a new entry and cancel, then edit the first entry and observe the blob is empty