#1 is_transient property in winprops not working

[Philipp Hartwig]

Winprops involving the is_transient property don't seem to match correctly. For example I have a winprop
defwinprop{
class = "Firefox-bin",
instance = "Navigator",
is_transient = false,
target = "firefoxframe",
}
which should match a normal Firefox window, but not dialogs spawned by Firefox. It does not match a normal Firefox window anymore though.