imDefLkup: Mark and unmark fabricated with serial 0
GTK2 applications with GTK_IM_MODULE=xim sets the serial number 0 to the XKeyEvent and the previous _XimFabricateSerial() logic did not work for the applications. Now the API marks to fabricate with the serial 0.
Closes: #205 (closed) Fixes: 024d229f ("ximcp: Unmark to fabricate key events with XKeyEvent serial")
Closes: #208 (closed) Closes: #207 (closed) Closes: #206 (closed)
Edited by Peter Hutterer