From dfe7c2f145189ea60586869c18240bbe3a18da7f Mon Sep 17 00:00:00 2001
From: David Vierra <codewarrior@hawaii.rr.com>
Date: Mon, 14 Sep 2015 17:53:07 -1000
Subject: [PATCH] NBT edits only create edit commands when the value is
 actually changed.

---
 src/mcedit2/widgets/nbttree/nbttreemodel.py | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/mcedit2/widgets/nbttree/nbttreemodel.py b/src/mcedit2/widgets/nbttree/nbttreemodel.py
index 0ec34a4..2b6134f 100644
--- a/src/mcedit2/widgets/nbttree/nbttreemodel.py
+++ b/src/mcedit2/widgets/nbttree/nbttreemodel.py
@@ -270,8 +270,12 @@ class NBTTreeItem(object):
     def setValue(self, value):
         if self.tag.tagID == nbt.ID_LONG:
             value = long(value)
-        self.tag.value = value
-        return True
+        if value != self.tag.value:
+            log.info("Changing NBT tag %s because old %s != new %s", self.nbtPath, self.tag.value, value)
+            self.tag.value = value
+            return True
+        else:
+            return False
 
     def nbtPath(self):
         if self.parentItem is None:
@@ -415,7 +419,7 @@ class NBTTreeModel(QtCore.QAbstractItemModel):
         item = self.getItem(index)
         column = index.column()
         if column == 0:
-            if item.parentItem.tag.tagID == nbt.ID_COMPOUND:
+            if item.parentItem.tag.tagID == nbt.ID_COMPOUND and item.tag.name != value:
                 item.parentItem.tag[value] = item.tag
                 item.tag.name = value
                 result = True