Filter one project with all types, another only with epics

Question

Project A has Epics that tied to Project B

Project B has Project B Epics and other issue types

The goal is to set the filter (that I can use as a board filter later) to show all project B issue types AND Project A Epics

So far I have this query: project = B and (project = A AND issuetype = Epic)

However no issues found

tasha tokunova_onk84f · Accepted Answer

I think I found solution:

project = B OR (project = A AND issuetype = Epic)