I don't believe that this is a bug with our software
As Greg stated, you should probably make more judicious use of tabs/new windows. I don't believe that we can particularly control what your local browser does with input into text boxes as you navigate back and forth in the same window.
Sorry for the late reply; I want to make sure, however, that I state my lack of plans to address this anytime soon, if at all.
-Mike
"They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety."
- Benjamin Franklin, 1759 Historical Review of Pennsylvania