I ran a poll and did not check the option to display the results publicly. But after voting I can see see the results. And when I log out as a guest, I can see the results then as well.
Correction, it may not be. I just did a test poll and see this
is what you mean by it being a public poll. If this is selected then yes it works now. Perhaps the wording should be changed as this suggests the viewing of the votes themselves is public and not who voted.