Description of problem:
GtkTreeView widget has multiple problems.
1. if GtkTreeView is registered as drag destination, it will
incorrectly try to act as a drag source as well (filed as 149836 in
bugzilla.gnome.org, patch attached). This may lead to crashes
depending on the way gtk was compiled.
2. if fixed-height property is set, row-changed events do not update
always the row in question (136496, workaround suggested).
3. if fixed-height property is set, row-inserted events do not update
the widget size (149935).
Version-Release number of selected component (if applicable):
I'll track those issues upstream.