[gnome-builder/document-manager] source-view: thar be dragons

[Christian Hergert <chergert src gnome org>]

commit 31818f475e1e3e60e3ce54c74e90c184ba1540aa
Author: Christian Hergert <christian hergert me>
Date:   Wed Dec 3 12:14:42 2014 -0800

    source-view: thar be dragons

 src/editor/gb-source-view.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/editor/gb-source-view.c b/src/editor/gb-source-view.c
index ec896a1..6512213 100644
--- a/src/editor/gb-source-view.c
+++ b/src/editor/gb-source-view.c
@@ -574,6 +574,10 @@ get_rect_for_iters (GtkTextView       *text_view,
       gtk_text_view_get_iter_location (text_view, &iter, &tmp);
       gdk_rectangle_union (&area, &tmp, &area);
 
+      /* ive seen a crash on the following line due to invalid textiter.
+       * none of these functions appear to me to be doing modifications,
+       * so im a bit perplexed. maybe stack corruption?
+       */
       gtk_text_iter_forward_to_line_end (&iter);
       gtk_text_view_get_iter_location (text_view, &iter, &tmp);
       gdk_rectangle_union (&area, &tmp, &area);