db.c.drop();
assert.commandWorked(db.createCollection("c", {timeseries: {timeField: "t", metaField: "m"}}));
assert.commandWorked(db.c.createIndex({"m.b": 1, t: 1}));
assert.commandWorked(db.c.createIndex({"m.a": 1, t: 1}));

// No bounded sort in this explain
jsTestLog(db.c.explain().aggregate([{$sort: {t: 1}}, {$match: {"m.a": 1}}, {$match: {"m.b": 1}}]));

// Run it to get it in the plan cache
db.c.aggregate([{$sort: {t: 1}}, {$match: {"m.a": 1}}, {$match: {"m.b": 1}}]).toArray();

// Should have one plan cache entry
assert.eq(db.system.buckets.c.getPlanCache().list().length, 1);

// Plan retrieved from cache, no bounded sort
jsTestLog(db.c.explain().aggregate([{$sort: {t: 1}}, {$match: {"m.a": 1}}, {$match: {"m.b": 1}}]));