[meld] De-dup previous commit message entries (bgo#699270)

[Kai Willadsen <kaiw src gnome org>]

commit 15f1a57b84d086b301fd6291f9d36c8c04baee24
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Sat May 4 07:09:11 2013 +1000

    De-dup previous commit message entries (bgo#699270)

 meld/ui/historyentry.py |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)
---
diff --git a/meld/ui/historyentry.py b/meld/ui/historyentry.py
index 52355ca..d7cebbe 100644
--- a/meld/ui/historyentry.py
+++ b/meld/ui/historyentry.py
@@ -230,6 +230,17 @@ class HistoryCombo(gtk.ComboBox, HistoryWidget):
         if len(text) <= MIN_ITEM_LEN:
             return
 
+        # Redefining here to key off the full text, not the first line
+        def _remove_item(store, text):
+            if text is None:
+                return False
+
+            for row in store:
+                if row[1] == text:
+                    store.remove(row.iter)
+                    return True
+            return False
+
         store = self.get_model()
         if not _remove_item(store, text):
             _clamp_list_store(store, self._history_length - 1)