Hello,

Step to reproduce :

1. Add content type "Article" a field "binaryfile", the binaryfile is required, no Searchable and no Translatable.

2. Create a article in English, upload a file.
3. "Create a new translation" in French, Base this translation on an existing translation English
4. Publish the french.

5. Edit the english version,  delete binaryfile and upload a new file. 
6. Publish or Save => Error 500

"An exception occurred while executing 'UPDATE `ezbinaryfile` SET contentobject_attribute_id = ?, filename = ?, mime_type = ?, original_filename = ?, version = ? WHERE (`contentobject_attribute_id` = ?) AND (`version` = ?)' with params [602, false, null, "carte-belgique (1).svg", 3, 602, 3]:

SQLSTATE[23000]: Integrity constraint violation: 1048 Column 'mime_type' cannot be null

"

Best Regards,
Yoann