Comment 6 for bug 677081

AFAICT r10761 seems to have introduced a slightly annoying regression (in the 'Background Color' widget called from 'File > Document Properties > Page > Background', but also in 'Fill & Stroke'): manually entering hex values (including Alpha > 0) by typing (not pasting) now make one feel like Sisyphus:
- It is not possible to overwrite the automatically added '00' for alpha with e.g. 'ff'
- Backspacing feels odd (from the end, or when placing the cursor somewhere in the middle of the hex string) because when a character has been deleted, the entry is auto-completed with '0' at the end, and the color changes unexpectedly (at least sometimes - I could really figure out what triggers that auto-completion).

Proposing to revert the commit.

(tested with r10760 and r10761 on Mac OS X 10.5.8 (32bit))