Description of problem: as summary. Version-Release number of selected component (if applicable): v3.8.10-1 on devel server. How reproducible: 100% Steps to Reproduce: 1.Click 'testing - new case' link to enter create case page. 2.Input Summary, then click save btn. Actual results: system still stay the current page, that is, system can not save the case and there is no warnings. Expected results: when input estimated_time as null, system will save the case's estimated_time as 0. Additional info: The above issue also happened when edit case.
verify this issue on 3.8.10-1 on devel server.--->Pass verify steps are same as description.