[NP-2058] - FixedSizeDAO Improvement (#3936)
[NP-2058] - FixedSizeDAO Improvement (#3936)

* FixedSizeDAO improvement

* revert changes

* clean up
foam-framework/foam2,jacksonic/vjlofvhjfgm,foam-framework/foam2,jacksonic/vjlofvhjfgm,foam-framework/foam2,jacksonic/vjlofvhjfgm,foam-framework/foam2,foam-framework/foam2