Proxy broken on 0.10.0 ?

[lukikr1]

It seems there is some problem with proxy in version 0.10.0
When run like this:
sscep enroll -t 5 -T 4 -R -p 10.1.69.95:8080 -u http://demo.one.digicert.com/mpki/api/(...)
sscep: starting sscep, version 0.10.0
sscep: new transaction
sscep: transaction id: D41D8CD98F00B204E9800998ECF8427E
sscep: hostname: 10.1.69.95
sscep: directory: 10.1.69.95
sscep: port: 8080
sscep: SCEP_OPERATION_GETCAPS
sscep: scep request:
GET 10.1.69.95?operation=GetCACaps HTTP/1.1
Host: 10.1.69.95:8080
Connection: close
(..)
sscep: applying base64 encoding
sscep: base64 encoded payload size: 3458 bytes
sscep: scep request:
GET 10.1.69.95?operation=PKIOperation&message=(...encoded...) HTTP/1.1
Host: 10.1.69.95:8080

And proxy error: The following error was encountered while trying to retrieve the URL: 10.1.69.95?operation=GetCACaps

Without proxy option:
sscep enroll -t 5 -T 4 -R -u http://demo.one.digicert.com/mpki/api/(...)
sscep: starting sscep, version 0.10.0
sscep: new transaction
sscep: transaction id: D41D8CD98F00B204E9800998ECF8427E
sscep: hostname: demo.one.digicert.com
sscep: directory: mpki/api/v1/scep/2d6b9358-47be-4a9c-95ec-59ffbc1a6096/cgi-bin/pkiclient.exe
sscep: port: 80
sscep: SCEP_OPERATION_GETCAPS
sscep: scep request:
GET /mpki/api/v1/scep/2d6b9358-47be-4a9c-95ec-59ffbc1a6096/cgi-bin/pkiclient.exe?operation=GetCACaps HTTP/1.1
Host: demo.one.digicert.com
Connection: close

Similar request with 0.6.1 works ok.