AWS S3 url encoding bug

[francisdb]

We have a bucket object with a a space in it's key

val key = "my object"
S3Client.download(bucket, key)

fails with the following error

akka.http.scaladsl.model.IllegalUriException: Illegal URI reference: Invalid input ' ', expected '/', 'EOI', '#', '?' or pchar (line 1, column 34): /waylay.plugins/app.templates/CO2 OK template
                                 ^
    at akka.http.scaladsl.model.IllegalUriException$.apply(ErrorInfo.scala:40)
    at akka.http.scaladsl.model.Uri$.fail(Uri.scala:752)
    at akka.http.impl.model.parser.UriParser.fail(UriParser.scala:80)
    at akka.http.impl.model.parser.UriParser.parseUriReference(UriParser.scala:45)
    at akka.http.scaladsl.model.Uri$.apply(Uri.scala:209)
    at akka.http.scaladsl.model.Uri$.apply(Uri.scala:181)
    at akka.stream.alpakka.s3.impl.HttpRequests$.requestUri(HttpRequests.scala:111)
    at akka.stream.alpakka.s3.impl.HttpRequests$.akka$stream$alpakka$s3$impl$HttpRequests$$s3Request(HttpRequests.scala:87)
    at akka.stream.alpakka.s3.impl.HttpRequests$.getDownloadRequest(HttpRequests.scala:39)
    at akka.stream.alpakka.s3.impl.S3Stream.request(S3Stream.scala:93)
    at akka.stream.alpakka.s3.impl.S3Stream.download(S3Stream.scala:63)
    at akka.stream.alpakka.s3.scaladsl.S3Client.download(S3Client.scala:50)

the case with a key of for example "my dir/my object.json" should also work (no encoding of the /'s)

when manually replacing " " with "%20" I get 403 Forbidden which indicates the signing is also broken with these kinds of url's

(the official client happily accepts keys with spaces)