Undo should be disabled for a completed puzzle

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Complete a puzzle.
2. While the completed puzzle is still displayed, press MENU, then Undo
3. The last move is undone, leaving the puzzle incomplete. But OpenSudoku
still considers the puzzle completed, so data entry is disabled.

What is the expected output? What do you see instead?
The UNDO function should be disabled or ignored once the current puzzle has
been completed.

What version of the product are you using? On what operating system?
v1.0.0 on Android 1.5 - Motorola MB300 (Backflip)

Please provide any additional information below.
I stumbled upon this accidentally. It is a minor issue, but an annoying
one, and probably easy to fix.

Original issue reported on code.google.com by greg.tho...@earthlink.net on 28 Apr 2010 at 4:11

[GoogleCodeExporter]

Fixed in trunk.

Original comment by romario...@gmail.com on 29 Apr 2010 at 9:49

• Changed state: Accepted
• Added labels: Milestone-Release1.1

[GoogleCodeExporter]

Original comment by romario...@gmail.com on 6 May 2010 at 7:03

• Changed state: Fixed