Expo plugin and Workspace Switcher hides applications/windows

[j0sh]

Ubuntu 9.04
Gnome 2.26.1
Kernel 2.6.28-11-generic
metacity 2.25.144

Reproduction of bug:
1) Workspace Switcher initially has 4 Columns and 1 Row.
2) I keep nautilus file browser open on Workspace 1
3) I keep firefox open on Workspace 3
4) Now change Workspace Switcher preferences from 1 row to 2 rows. So that makes 4 Columns and 2 Rows.
5) Use Expo to navigate to Workspace 5 (6,7, or 8), i.e. any workspace on Row 2.
6) Change the Workspace Switcher preferences from 2 rows back to 1 row. That makes it 4 Columns and 1 Row.

What happened: The nautilus and firefox appear to have disappeared, but they are just way up on the screen (The window edge is sometimes noticeable in the Workspace Switcher). This gives the impression to the user that the applications have been closed. Changing preferences of Workspace Switcher back to 2 rows from 1 row helps get back the open applications.

What should have happened: The open applications should have seamlessly been transferred to active Workspaces, giving the user the impression that Workspace Switcher was smart enough to manage workspaces.

Very trivial bug for experienced ubuntu users, but new users will feel that the system crashed.

[Fabio Marconi (fabiomarconi)]

Thank you for taking the time to report this bug and helping to make Ubuntu better.
Is this bug reproducible with the latest Lucid packages ?
Thanks in advance.

[Fabio Marconi (fabiomarconi)]

 Thank you for taking the time to report this bug and helping to make Ubuntu better. This bug did not have a package associated with it, which is important for ensuring that it gets looked at by the proper developers. You can learn more about finding the right package at https://wiki.ubuntu.com/Bugs/FindRightPackage .

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://help.ubuntu.com/community/ReportingBugs.

[Fabio Marconi (fabiomarconi)]

We'd like to figure out what's causing this bug for you, but we haven't heard back from you in a while. Could you please provide the requested information? Thanks!

[Fabio Marconi (fabiomarconi)]

We are closing this bug report because it lacks the information we need to investigate the problem, as described in the previous comments. Please reopen it if you can give us the missing information, and don't hesitate to submit bug reports in the future. To reopen the bug report you can click on the current status, under the Status column, and change the Status back to "New". Thanks again!