--- C:/Documents and Settings/e1263830/Desktop/git.rb	Fri Oct 28 11:42:58 2011
+++ C:/Documents and Settings/e1263830/Desktop/patched_git.rb	Fri Oct 28 12:04:13 2011
@@ -142,15 +142,15 @@
     end
     scm_brs.each do |br1|
       br = br1.to_s
+      rev = nil
       from_scmid = nil
       from_scmid = h["branches"][br]["last_scmid"] if h["branches"][br]
       h["branches"][br] ||= {}
-      scm.revisions('', from_scmid, br, {:reverse => true}) do |rev|
-        db_rev = find_changeset_by_name(rev.revision)
-        transaction do
-          if db_rev.nil?
-            save_revision(rev)
-          end
+      transaction do
+        scm.revisions('', from_scmid, br, {:reverse => true}) do |rev|
+          find_changeset_by_name(rev.revision) || save_revision(rev)
+        end
+        unless rev.nil?
           h["branches"][br]["last_scmid"] = rev.scmid
           merge_extra_info(h)
           self.save