Different behavior between Q.enqueue1 and Q.enqueue when calling Q.dequeue

fs2-queue-behavior.scala

package com.gvolpe.fs2queue

import fs2.{Stream, Task, async}

object FS2QueueBehavior extends App {

  implicit val S = fs2.Strategy.fromFixedDaemonPool(2, "fs2-queue")

  val p1 = for {
    simpleQ <- Stream.eval(async.boundedQueue[Task, String](10))
    _       <- Stream.emits[Task, String](Seq("This is fs2!", "Hello", "World!")) to simpleQ.enqueue
//    _       <- Stream("This is fs2!", "Hello", "World!") to simpleQ.enqueue
    result  <- simpleQ.dequeue.take(3)
  } yield {
    println(result)
  }

//  p1.run.unsafeRun()

  val p2 = for {
    simpleQ <- Stream.eval(async.boundedQueue[Task, String](10))
    _       <- Stream.eval(simpleQ.enqueue1("Hello"))
    _       <- Stream.eval(simpleQ.enqueue1("World!"))
    _       <- Stream.eval(simpleQ.enqueue1("This is fs2!"))
    result  <- simpleQ.dequeue.take(3)
  } yield {
    println(result)
  }

  p2.run.unsafeRun()

}