[gthumb] thumbnail list scrollbar not working sometime

[Paolo Bacchilega <paobac src gnome org>]

commit 14c1847078f4dbc8f9a2f0c471588c3f0581c0ac
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sun Mar 29 16:51:56 2015 +0200

    thumbnail list scrollbar not working sometime
    
    let other handlers to run on the value-changed signal

 gthumb/gth-file-list.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/gthumb/gth-file-list.c b/gthumb/gth-file-list.c
index 1457d1a..f566742 100644
--- a/gthumb/gth-file-list.c
+++ b/gthumb/gth-file-list.c
@@ -526,7 +526,7 @@ thumbnail_job_cancel (ThumbnailJob *job)
 /* --- */
 
 
-static void
+static gboolean
 vadj_changed_cb (GtkAdjustment *adjustment,
                 gpointer       user_data)
 {
@@ -534,6 +534,8 @@ vadj_changed_cb (GtkAdjustment *adjustment,
 
        file_list->priv->thumbnailer_state.phase = THUMBNAILER_PHASE_INITIALIZE;
        start_update_next_thumb (GTH_FILE_LIST (user_data));
+
+       return FALSE;
 }