fix: make recursive pins depth infinity

Author: achingbrain

migrations/migration-9/index.js

@@ -16,7 +16,9 @@ async function pinsToDatastore (blockstore, datastore, pinstore) {
   const pinRoot = dagpb.util.deserialize(pinRootBuf)
 
   for await (const cid of pinset.loadSet(blockstore, pinRoot, PinTypes.recursive)) {
-    const pin = {}
+    const pin = {
+      depth: Infinity
+    }
 
     if (cid.version !== 0) {
       pin.version = version

test/migrations/migration-9-test.js

@@ -120,7 +120,7 @@ module.exports = (setup, cleanup, options) => {
         expect(keyToCid(key).toString()).to.equal(pinnedCid.toString())
 
         const pin = cbor.decode(pins[0].value)
-        expect(pin.depth).to.be.undefined()
+        expect(pin.depth).to.equal(Infinity)
 
         await datastore.open()
         await expect(datastore.has(PIN_DS_KEY)).to.eventually.be.false()