Get tip for substrate PR. 

See these:

• https://polkadot.js.org/apps/#/treasury/tips
• https://github.com/paritytech/substrate/pull/13800
• https://polkadot.polkassembly.io/tip/0x7045b376f208b9102cde994054c7772cb8ba5f297f3d96e42c3d21fd88c2606d

It is just an old tip issued at gov1 stage but not executed because opengov. I think that's the all info. It just a reward of contribution for substrate code.