When I try to search sub tasks via JQL
if I use JQL below
project in (xxx) AND issuetype in subTaskIssueTypes() ORDER BY key ASC, Rank ASC
I can search my sub task out.
But if I add "Sprint"
project in (xxx) AND issuetype in subTaskIssueTypes() AND Sprint =yyyy ORDER BY key ASC, Rank ASC
It always shows nothing.
I also tried
project in (xxx) AND issuetype in subTaskIssueTypes() AND Sprint is not EMPTY ORDER BY key ASC, Rank ASC
it still shows nothing.
Why is that?
Is it a bug?