Issue 15242

1. Run: soffice.
2. File -> New -> text object
3. Tools -> options -> locale settings -> Hebrew  (this step is not
    required, I think).
4. I start writing Hebrew (unicode):
   a.  I write the first word.  It seems okay.
   b.  I put a space.  It still seems okay.
   c.  I begin the next word.  The space disappears.
       The two words become adjacent.
       This behaviour occurs for the coming words too.
       When I move backward in the line (using the arrows), the
       cursor stands in the middle of characters, as if it it no
       longer synchronized with the letters (maybe the space moved
       somewhere in the line?).
  From time to time (I have no exact characterization) a letter in
the first word is half-duplicated when the space disappears.
By half duplicated I mean, the last part of the word before the space
is duplicated to fill-in the space.  The width of the space may be
smaller that that of a letter, so part of the letter overlaps another
instance of it.  I'll demonstrate it:

I want to write:      Shalom Aleykhem.  [ in Hebrew letters, of course. ]
I get something like: ShallomAleykhem.
Now, the `l' in the above appears twice, but in practice the two `l's
go one over the other.