back up old named graph before change
When editing we would like to have a way to check what changed during the edit and possibly undo the edit.
In the form/LDP based editing mode we could back up the named graph before it gets overwritten.
When editing we would like to have a way to check what changed during the edit and possibly undo the edit.
In the form/LDP based editing mode we could back up the named graph before it gets overwritten.