Steps:
1. Login to JIRA.
2. Add "Time Since Chart" gadget on dashboard.
3. Configure it with previous day options as 500.
4. Click save to view the gadget.

Result:
1. The gadget view says it showing data for last 500 days but if you click on issues link, the query has -300d day define and that is thelimit.
2. If user search less then 300d everything will be fine but more then 300....no luck.
3. Its working in 3.13.5

Expected:
1. User should see correct result.