I have a problem with the Spreadsheet workbench. Please have a look at the attached model. When I add a dimension at the first entry of the list, FreeCAD crashes without any warning or error. Values which causes crashes (tried so far): 0.1, 0.2, 0.3, 3

Here is the dependency graph, if necessary:

OS: Ubuntu 14.04.3 LTS
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.16.5871 (Git)
Build type: None
Branch: master
Hash: 8645d56acf11bdabb2f24ed40f39c9b2bbff9a40
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 6.8.0.oce-0.17
Thank you!
Greetings.