in FL 5.1 when you generate a font whiteout copyright info (a beta version, for example) the new FL 5.1 will attribute your font to Adobe.
Adding this into your copyright: "Copyright 2012 Adobe Systems Incorporated. All rights reserved."
And this into your trademark: Please refer to the Copyright section for the font trademark attribution notices.
Also, in some case, it will "replace" your own copyright data.
The old FL 5.0 used to say "Generated in 2012 by FontLab Studio. Copyright info pending."