"save as" of a file with a name containing a " (double quote) character saves under truncated name

Reproducible: Always

Steps to Reproduce:
1. have a file test"ooo"bar.txt (see test case file)
2. open in kwrite (4.12.0 and KDE base same version)
3. file → save as → ok
Actual Results:  
saved into a new file named ooo.

Expected Results:  
file gets  saved under the old file name (as shown in the dialog window)

Same happens for saving in the KDE program okular (when a file name is asked for).
A simple "save" works as expected.

Impact: could lead to data loss if it is not noticed that the desired and old name was not used for the saved (possibly altered) data.