[f-spot/0_6] Fix crash when editing empty icon and a color profile is active

[Lorenzo Milesi <lmilesi src gnome org>]

commit a438d8c1a28eebb2170224411b85461561d082a6
Author: Matti Kerttula <matti kerttula gmail com>
Date:   Fri Aug 14 09:52:04 2009 +0200

    Fix crash when editing empty icon and a color profile is active
    
    Fixes bgo#591513

 src/UI.Dialog/EditTagDialog.cs |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/UI.Dialog/EditTagDialog.cs b/src/UI.Dialog/EditTagDialog.cs
index 1a482c4..2f28407 100644
--- a/src/UI.Dialog/EditTagDialog.cs
+++ b/src/UI.Dialog/EditTagDialog.cs
@@ -42,7 +42,7 @@ namespace FSpot.UI.Dialog
 
 			icon_image.Pixbuf = t.Icon;
 			Cms.Profile screen_profile;
-			if (FSpot.ColorManagement.Profiles.TryGetValue (Preferences.Get<string> (Preferences.COLOR_MANAGEMENT_DISPLAY_PROFILE), out screen_profile)) {
+			if (icon_image.Pixbuf != null && FSpot.ColorManagement.Profiles.TryGetValue (Preferences.Get<string> (Preferences.COLOR_MANAGEMENT_DISPLAY_PROFILE), out screen_profile)) {
 				icon_image.Pixbuf = icon_image.Pixbuf.Copy();
 				FSpot.ColorManagement.ApplyProfile (icon_image.Pixbuf, screen_profile);
 			}
@@ -122,7 +122,7 @@ namespace FSpot.UI.Dialog
 				tag.Icon = null;
 
 			Cms.Profile screen_profile;
-			if (FSpot.ColorManagement.Profiles.TryGetValue (Preferences.Get<string> (Preferences.COLOR_MANAGEMENT_DISPLAY_PROFILE), out screen_profile)) {
+			if (tag.Icon != null && FSpot.ColorManagement.Profiles.TryGetValue (Preferences.Get<string> (Preferences.COLOR_MANAGEMENT_DISPLAY_PROFILE), out screen_profile)) {
 				icon_image.Pixbuf = tag.Icon.Copy();
 				FSpot.ColorManagement.ApplyProfile(icon_image.Pixbuf, screen_profile);
 			} else