Broken: 2.70 f7d06cdb6b
Worked: 2.69 release
**Short description of error**
Fields (buttons) with editable text and dropdown buttons in datablocks editor are broken in 2.70. Some of them can not be edited, some of them lead to crash.
**Exact steps for others to reproduce the error**
# Switch outliner to datablocks editor.
# Expand Cameras -> Camera
# Try to edit Name -- this field is uneditable in datablocks UI
# Look at Type, Composition Guides and Sensor Fit dropdowns -- no text is these fields. Try to set them -- still no text.
# Scroll down and single click Dof Object field -- the list of objects is empty.
# Double click Dof Object field -- blender will assert at `string.c:117, BLI_strncpy(), at 'maxncpy != 0'` and crash.