I figured out this is not metacity's doing but maximus (0.4.14-1ubuntu2). The issue can be fixed by setting /apps/maximus/no_maximize to true in gconf-editor. I propose this should be the default behavior of this package.
** Package changed: metacity (Ubuntu) => maximus (Ubuntu) -- Metacity starts every window maximized https://bugs.launchpad.net/bugs/599118 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to metacity in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs