Apply recursive check to immediateloader and generalize

Apply recursive check to immediateloader and generalize

Fixed critical regression caused by the new feature added as part of
:ticket:`1763`, eager loaders are invoked on unexpire operations. The new
feature makes use of the "immediateload" eager loader strategy as a
substitute for a collection loading strategy, which unlike the other
"post-load" strategies was not accommodating for recursive invocations
between mutually-dependent relationships, leading to recursion overflow
errors.

Fixes: #6232
Change-Id: Ifb2286281f40d1a04c24741261d4438659b6e3dd