Source view requires scroll to appear

[Victor Timpau]

INFO: Open page: <FileStorePage: First Class> (<HistoryPath: First Class>)
DEBUG: Insert object(<TextBuffer object at 0x7f1c02981460 (zim+gui+pageview+TextBuffer at 0x55761ffa76c0)>, <Element 'object' at 0x7f1c02971e40>)
/usr/lib/python2.7/site-packages/zim/gui/widgets.py:188: GtkWarning: gtk_scrolled_window_add(): cannot add non scrollable widget use gtk_scrolled_window_add_with_viewport() instead
  window.add(widget)
DEBUG: Remote call returned to 10468: None
DEBUG: NOTE FOR BUG REPORTS:
 At this point zim has send the command to open a notebook to a
 background process and the current process will now quit.
 If this is the end of your debug output it is probably not useful
 for bug reports. Please close all zim windows, quit the
 zim trayicon (if any), and try again.

As the summary states, If i don't scroll down the source view causes my whole window to freeze up and seemingly the process dies as well. A fix would be nice since this is pretty annoying.

INFO: This is zim 0.63
DEBUG: Python version is sys.version_info(major=2, minor=7, micro=10, releaselevel='final', serial=0)
DEBUG: Platform is posix
DEBUG: Zim revision is:
  branch: zim-trunk
  revision: 765 <email address hidden>
  date: 2015-06-13 21:48:28 +0200