**System Information**
Xubuntu 14.10 x64, Win7 x64
**Blender Version**
Broken: 2.74 000dfc0
**Short description of error**
Segfault after bpy.data.objects(Object) run.
Here is the content of blender.crash.txt:
Blender 2.74 (sub 0), Commit date: 2015-03-31 13:39, Hash 000dfc0
bpy.ops.text.run_script() # Operator
# backtrace
./blender(BLI_system_backtrace+0x1d) [0x197a4bd]
./blender() [0x100cfe9]
./blender() [0x100d1c6]
/lib/x86_64-linux-gnu/libc.so.6(+0x36eb0) [0x7fac11ae7eb0]
./blender(BKE_key_from_object+0x3f) [0x16c999f]
./blender(modifiers_getVirtualModifierList+0xa8) [0x1659878]
./blender(modifiers_isDeformedByArmature+0xf) [0x1659a4f]
./blender(BKE_object_pose_armature_get+0x28) [0x15dbea8]
./blender(ED_operator_posemode+0x28) [0x13192c8]
./blender() [0x102bc2b]
./blender() [0x102c0e6]
./blender(wm_event_do_handlers+0x39d) [0x102c5dd]
./blender(WM_main+0x18) [0x1014a38]
./blender(main+0x52c) [0x100f917]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5) [0x7fac11ad2ec5]
./blender() [0xf11b71]
**Exact steps for others to reproduce the error**
Open default scene, switch to Scripting layout.
Select Cube and run following code:
import bpy
obj = bpy.context.active_object
obj.user_clear()
bpy.data.objects.remove(obj)