[wmii] Crash - issue #49 added

[Alex Kilgore]

What steps will reproduce the problem?
1. make 3 xterms or any client
2. switch to stack mode
3. take the last term you made and put it in float mode
4. try to immediately move it back to the stacked column
What is the expected output? What do you see instead?

expected: it moves back
wmii crashes

What version of the product are you using (wmii -v)? On what operating 
system?
wmii-hg2338, ©2008 Kris Maglione