Committing preedit string on focus out

[swati pardeshi <it is swati gmail com>]

I have a query regarding preedit strings in editables like gtkentry,
gtktextview. When there is a preedit string in one gtkentry and focus is
shifted to another gtkentry, the preedit string in the first is lost. Is
this expected behaviour? Shouldn't the preedit string be committed on focus
out? Also, if commit does not happen on focus-out, shouldn't the preedit
string be activated again on regaining focus? Please help.