FIX: fix and reduce selective-acquire implementation
FIX: fix and reduce selective-acquire implementation

We were not bypassing uneeded self-invalidations.
Now the invalidation number is the same between the
fine-grained and coarse-grained implementation.

ExaScience/bpmf,ExaScience/bpmf,ExaScience/bpmf,ExaScience/bpmf,ExaScience/bpmf