[evolution] EMsgComposer - Avoid runtime warning when opening a template that was not written in WebKit based co

[Tomas Popela <tpopela src gnome org>]

commit 47b79cb98ac696e7d6dd083a764e56bb807d11a5
Author: Tomas Popela <tpopela redhat com>
Date:   Fri Mar 13 08:45:02 2015 +0100

    EMsgComposer - Avoid runtime warning when opening a template that was not written in WebKit based composer
    
    This change will also as a consequence show a dialog whether the user
    wants to lose formatting.

 composer/e-msg-composer.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/composer/e-msg-composer.c b/composer/e-msg-composer.c
index 7bab538..c74eaff 100644
--- a/composer/e-msg-composer.c
+++ b/composer/e-msg-composer.c
@@ -3601,7 +3601,7 @@ e_msg_composer_new_with_message (EShell *shell,
                flags = g_strsplit (format, ", ", 0);
                for (i = 0; flags[i]; i++) {
                        if (g_ascii_strcasecmp (flags[i], "text/html") == 0) {
-                               if (g_ascii_strcasecmp (composer_mode, "text/html") == 0) {
+                               if (composer_mode && g_ascii_strcasecmp (composer_mode, "text/html") == 0) {
                                        e_html_editor_view_set_html_mode (
                                                view, TRUE);
                                } else {
@@ -3609,7 +3609,7 @@ e_msg_composer_new_with_message (EShell *shell,
                                                view, FALSE);
                                }
                        } else if (g_ascii_strcasecmp (flags[i], "text/plain") == 0) {
-                               if (g_ascii_strcasecmp (composer_mode, "text/html") == 0) {
+                               if (composer_mode && g_ascii_strcasecmp (composer_mode, "text/html") == 0) {
                                        e_html_editor_view_set_html_mode (
                                                view, TRUE);
                                } else {