Sticky piston is never sticky

All older as well as latest versions of minecraft have this issue. When not triggered by redstone switch or any redstone source, the sticky piston acts as if it is not sticky. In the screenshots, both pistons are sticky pistons and the sticky piston before the inactive sticky piston ,is sticky and pushes as well as pulls it back. But this do not goes on. I means that the sticky piston next to active one is inactive and not pull the block next to it. But it should pull it back as it is its property by name. It should pull the block back whether it is active or inactive. And the sticky property of piston should not be related to the redstone power source.