mData.modMetadata = mMailbox.getOperationChangeID();
mData.metadataChanged(mMailbox);
	protected void tagChanged(Tag tag, boolean add) throws ServiceException {	    markItemModified(tag instanceof Flag ? Change.MODIFIED_FLAGS : Change.MODIFIED_TAGS);	    mData.modMetadata = mMailbox.getOperationChangeID();	    if (tag instanceof Flag) {	        if (add)  mData.flags |= tag.getBitmask();	        else      mData.flags &= ~tag.getBitmask();	    } else {	        if (add)  mData.tags |= tag.getBitmask();	        else      mData.tags &= ~tag.getBitmask();	    }	}