With Wnn6, XmbResetIC() doesn't invoke a preedit draw callback to remove any outstanding preedit string. Instead, Wnn6 invokes a preedit done callback. Currently, the XIM adapter ignores preedit done callbacks, which creates an inconsistent internal state in the XIM adapter.

This is a bug of Wnn6, but the XIM adapter should provide a workaround.

See 4150551 and 4151804 for the Wnn6 bugs on Solaris2.6 and 2.5.1.