Add test case from Issue 2376, to ensure it doesn't break in the future
Add test case from Issue 2376, to ensure it doesn't break in the future

Rdatatable/data.table,jangorecki/data.table,jangorecki/data.table,Rdatatable/data.table,vlulla/data.table,jangorecki/data.table,vlulla/data.table,jangorecki/data.table,Rdatatable/data.table,vlulla/data.table,vlulla/data.table,Rdatatable/data.table