libdeng2|Config: Detect upgrades only once

Once the new version has been detected, we can forget about __oldversion__.
skyjake · Dec 3, 2012 · db0c144 · db0c144
1 parent b4e632b
commit db0c144
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/doomsday/libdeng2/modules/Config.de b/doomsday/libdeng2/modules/Config.de
@@ -95,4 +95,7 @@ if '__oldversion__' in locals()
         # Current version is newer.
         print 'Detected new release:', __oldversion__, '=>', __version__
     end
+
+    # The above should be done only once after upgrading.
+    del __oldversion__
 end