Description of problem:
editing and undo all on replay messages fotmated in html 

Version-Release number of selected component:
evolution-3.12.11-1.fc21

Additional info:
reporter:       libreport-2.3.0
backtrace_rating: 4
cmdline:        /usr/bin/evolution
crash_function: html_object_split
executable:     /usr/bin/evolution
kernel:         4.1.4-100.fc21.x86_64
runlevel:       N 5
type:           CCpp
uid:            500

Truncated backtrace:
Thread no. 1 (10 frames)
 #4 html_object_split at htmlobject.c:1031
 #5 split at htmlclueflow.c:374
 #6 split_and_add_empty_texts at htmlengine-edit-cut-and-paste.c:390
 #7 insert_object_do at htmlengine-edit-cut-and-paste.c:962
 #8 insert_object_for_undo at htmlengine-edit-cut-and-paste.c:1215
 #9 delete_undo_action at htmlengine-edit-cut-and-paste.c:470
 #10 action_do_and_destroy_undo at htmlundo.c:167
 #11 html_undo_do_undo at htmlundo.c:197
 #12 undo_step_action at htmlundo.c:561
 #13 action_do_and_destroy_undo at htmlundo.c:167