blog edit email notification test 7
revision 1 revision 2 non-op revision revision 4

revision 1 revision 2 non-op revision revision 4
revision 1 revision 2 not op revision revision 4
revision 1 revision 2 revision 3 revision 4 revision 5 not op revision revision 6
revision 1 revision 2 revision 3 revision 4
revision 1 revision 2 revision 3 (not original author) revision 4