Created attachment 118520 [details]
Backtrace following crash

When using LibreOffice Writer with the GTK3 interface, deleting text immediately after creating a selection crashes the program.

Reproducibility: Always

Steps to reproduce:

1) Launch LibreOffice using the GTK3 interface (e.g., via SAL_USE_VCLPLUGIN=gtk3) and begin a new Writer document.
2) Type some text.
3) Press the Home key to go to the beginning of the line.
4) Press Shift+End to select to the end of the line, then press Delete.

After Step 4, the following error message gets printed to the console:

** (soffice:27805): WARNING **: Unknown event notification 36

Also, if Delete was pressed immediately after pressing Shift+End, LibreOffice crashes without any further error message.  However, if I pause for a second or two between the two keystrokes, LibreOffice does not crash.

I am using LibreOffice 5.0.1.2 on openSUSE 13.2 (64-bit).

The problem does not occur with Impress or Calc.  The problem also doesn't occur if I force a different interface such as "kde4" or "gtk".