Bug 240024

Version:           unspecified (using KDE 4.4.2) 
OS:                Linux

Periodically, when a maximized window is first sent to bottom of the stack and then reselected, it will un-maximize.

This happens erratically with no pattern I have noticed, but can be reliably reproduced on my system with a strange sequence of events. The specific sequence of events to reproduce it reliably are unlikely to occur in normal activities, but it also happens at other times with no pattern I have been able to discern.

Reproducible: Sometimes

Steps to Reproduce:
Assuming that I have window A that is maximized and active and at the top of the stack and window B that is not maximized and below window A, if I send window A to the bottom (middle-click on titlebar), then left-click on the titlebar of window B, then left-click on the titlebar of window A once more, window A will reduce from maximization. This happens often if done in that order slowly, but has a 100% chance of happening if all that is done in less than 1 second.

Two other specific details with how this happens: It only happens to a window if the window is activated by selecting the titlebar, not by selecting the contents of the window; It only ever happens if the selected window is at the bottom of the stack (if there are other windows below it, I've never seen this happen, although the amount of windows above the window does not seem to matter).

Actual Results:  
Window becomes un-maximized.

Expected Results:  
Window should remain maximized.

I am using the defaults window settings after upgrading Kubuntu to version 10.04.

When I run "kwin --version" it says "KWin: 4.4.2 (KDE 4.4.2)" which was not an option on "application version" dropdown, so I left that as "unspecified".