fmbtwindows: fix setClipboard to clear existing data
fmbtwindows: fix setClipboard to clear existing data

yoonkiss/fMBT,mixu-/fMBT,violep01/fMBT,mixu-/fMBT,mixu-/fMBT,violep01/fMBT,violep01/fMBT,yoonkiss/fMBT,01org/fMBT,yoonkiss/fMBT,01org/fMBT,violep01/fMBT,01org/fMBT,mixu-/fMBT,01org/fMBT,violep01/fMBT,yoonkiss/fMBT,01org/fMBT,yoonkiss/fMBT,mixu-/fMBT