Closed Issue: MimeMultipartBodyPartParser fails with IOException for file of size 26 bytes [257]

System.AggregateException: One or more errors occurred. ---> System.IO.IOException: Unexpected end of MIME multipart stream. MIME multipart message is not complete.
at System.Net.Http.Formatting.Parsers.MimeMultipartBodyPartParser.<ParseBuffer>d__0.MoveNext() in f:\workspace\runtime\src\System.Net.Http.Formatting\Formatting\Parsers\MimeMultipartBodyPartParser.cs:line 129
at System.Net.Http.HttpContentMultipartExtensions.MoveNextPart(MultipartAsyncContext context) in f:\workspace\runtime\src\System.Net.Http.Formatting\HttpContentMultipartExtensions.cs:line 267
--- End of inner exception stack trace ---
---> (Inner Exception #0) System.IO.IOException: Unexpected end of MIME multipart stream. MIME multipart message is not complete.
at System.Net.Http.Formatting.Parsers.MimeMultipartBodyPartParser.<ParseBuffer>d__0.MoveNext() in f:\workspace\runtime\src\System.Net.Http.Formatting\Formatting\Parsers\MimeMultipartBodyPartParser.cs:line 129
at System.Net.Http.HttpContentMultipartExtensions.MoveNextPart(MultipartAsyncContext context) in f:\workspace\runtime\src\System.Net.Http.Formatting\HttpContentMultipartExtensions.cs:line 267<---