id summary reporter owner description type status component version severity resolution keywords cc stage has_patch needs_docs needs_tests needs_better_patch easy ui_ux 10511 get_prep_value isn't called on QuerySet.update() Sebastian Noack nobody I had to note that get_prep_value() isn't called when calling QuerySet's update() method. This is a problem, since for example the DateTimeField calls value_to_db_datetime() which truncated milliseconds when using MySQL. Otherwise you get warning from the database server. closed Database layer (models, ORM) 1.0 duplicate Unreviewed 0 0 0 0 0 0