052918a23a
The changeOpen status is cached in the PatchSetApprovals table for performance reasons, so the approvals must be updated whenever the change status changes. This update is done in a few places and is likely not ever obvious why the update is being done. Make a function to do the update which makes the code self documenting all while sharing the implementation. Create an new ApprovalsUtil class for this function which can be a good place for more approval manipulating functions in the future. Change-Id: If92f3757963048a141003304f2c96036c915ab89