f := CreatePalette[PasteButton[α]]; f
f will generate two palettes and this is not expected. Before version 10, I always get one.
Is this a possible bug? Or something change in this behavior?
I'm on windows 8.1 x64 and v10.0.1.
A friend told me
f := CreatePalette[PasteButton[α]];
will generate only one palette. The problem is I must type
 each time I call this palette.