[Libreoffice] [PATCH] [REVIEW-3-4] fdo#39950 report builder segfault during copy/paste

[Lionel Elie Mamane]

Attached patch is a backport of commit
538190e0ea142d0a7da244809c66241379d4d91b
in master by Caolán McNamara.
The only change wrt to master is in whitespace in context lines (tabs
vs spaces...)

It fixes fdo#39950, "most annoying" and severity "critical": when
copy/pasting (or drag'n dropping across section boundaries) a control
in report builder, LibreOffice segfaults.

I've tested this patch on libreoffice-3-4 (and on master).

Please apply to libreoffice-3-4.

-- 
Lionel