Single Putty window can disappear -- window seems unrecoverable

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Begin with any two "free-floating" SuperPuTTY windows
2. Drag one window on top of the other to activate (show) the placement guide
3. Choose Top, Bottom, Left, or Right from the placement guide.  The two 
windows will merge to one split-view window.
4. Drag the titlebar of either PuTTY connection away from all SuperPuTTY 
windows.

What is the expected output?

Two free-floating windows

What do you see instead?

The window being dragged disappears.  I don't know how to make it reappear.

What version of the product are you using?

1.2.0.8

On what operating system?

Windows 7 (64-bit)

Please provide any additional information below.

"Free-floating" windows refer to any window created by dragging a SuperPuTTY 
tab away from the main frame window, creating a stand-alone window.

This is probably related to the bug in Issue 98.  Although that bug has 
different repro steps and involves choosing the "center" guide when merging two 
windows.

Original issue reported on code.google.com by drew.dor...@gmail.com on 31 May 2012 at 9:18

[GoogleCodeExporter]

It looks like the window is closed when it's dragged out of the floating 
window.  

Original comment by btatey...@gmail.com on 3 Jun 2012 at 2:22

• Added labels: ****
• Removed labels: ****

[GoogleCodeExporter]

same issue with the file transfer window...maybe a bug in dock panel. 

Original comment by btatey...@gmail.com on 3 Jun 2012 at 2:37

• Added labels: ****
• Removed labels: ****

[GoogleCodeExporter]

Tried 2.6, issue still there so I rolled back to dockpanel 2.4 and it seems to 
be fixed.  

Original comment by btatey...@gmail.com on 3 Jun 2012 at 3:02

• Changed state: Fixed
• Added labels: ****
• Removed labels: ****