From f680ce1f4373bb558b6f2a0e208e66a26eec3b0b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nelson=20Ben=C3=ADtez=20Le=C3=B3n?=
 <nbenitezl+gnome@gmail.com>
Date: Fri, 10 Feb 2017 23:29:41 +0500
Subject: [PATCH] textiter: fix bug in gtk_text_iter_backward_line()

gtk_text_iter_backward_line() checks the value of
real->line_char_offset without previously calling
ensure_char_offsets (real) to make sure the former
is up-to-date.

As a consequence of this, when gtk_text_iter_backward_line()
is called after a gtk_text_buffer_insert_range() in the
first line of buffer, the iter is not moved to the start of
the line, and the return value is wrong.

Fixed by adding the ensure_char_offsets() call.
---
 gtk/gtktextiter.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gtk/gtktextiter.c b/gtk/gtktextiter.c
index c335e1c303..abcd92a962 100644
--- a/gtk/gtktextiter.c
+++ b/gtk/gtktextiter.c
@@ -2547,6 +2547,8 @@ gtk_text_iter_backward_line (GtkTextIter *iter)
   if (real == NULL)
     return FALSE;
 
+  ensure_char_offsets (real);
+
   check_invariants (iter);
 
   new_line = _gtk_text_line_previous (real->line);