Steps for reproduction:
- Open FreeCAD
- Create two parts
Part and Part001 by default - Make a new body in Part
Make Part active and make new body - Create a datum plane
Show the object origin and use e.g. XY-Plane, offset by 20 units in Z just because - Make Part001 active, make a new body in it
- Create a new sketch for this body
- Use Allow external features > From other parts or free features
- Select the datum plane
Keep option for reference as Make independent copy (Recommended) - Click Okay, FreeCAD crashes
OS: Debian GNU/Linux 9.4 (stretch)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.13509 (Git) AppImage
Build type: None
Branch: master
Hash: 0258808ccb6ba3bd5ea9312f79cd023f1a8671b7
Python version: 2.7.6
Qt version: 4.8.6
Coin version: 4.0.0a
OCC version: 7.1.0
Locale: English/UnitedStates (en_US)