To be clear, the Spurs can renounce DMDR and S&T him. The hold is for a team to use the Bird exception to re-sign a player that season only and doesn't affect anything else when it comes to tenure (as we should've learned when SA renounced Manu and then signed him to a huge deal the next year because they still had full Bird rights). Obviously that would limit how much money they could give DeMar to their available cap space, but they can still do both.