Bug 1681291: Missing params for LeapImportComment::setup_relationships()

When the bug 1643365 was fixed we missed a place where the
setup_relationships() was called. We need to add the extra required
parameters to the call

behatnotneeded

Change-Id: I093937073598d4ff39abfa10aa9725319a40ec55
Signed-off-by: Robert Lyon <robertl@catalyst.net.nz>
(cherry picked from commit a407b379)