resolved rhbz#838248 init filter criteria string
resolved rhbz#838248 init filter criteria string

In ScFilterDlg::Init() the string displayed as criteria was empty if
query is ByValue or ByDate. From earlier times the dialog assumed that
the query string was always set corresponding to the value, but internal
handling was changed.

Change-Id: I4f10654f4015b38f7ddba9d6727e06806f1d6b77

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core