If there is a package in lookaside, it will not be pulled into the compose. However if the same build is available in the package set, the corresponding debuginfo and source package could be pulled in (if they are not present in lookaside as well).
It does not make much sense and pungi should not check sources and debuginfo for stuff in lookaside at all.
Commit c07a4d64 fixes this issue
Metadata Update from @lsedlar: - Issue tagged with: 4.1.24
This issue has been migrated to Fedora Forge: https://forge.fedoraproject.org/pungi/pungi/issues/915
Please continue any further discussion there.