Thomas Hanke

@SrgSteak Did you use `copy('gaufrette://filesystem/file.tar.gz','/tmp/file.tar.gz')`? I had the same issue, but I didn't use `copy()`. With `copy()` my application works fine.

I have implemented something similar in my small project. In the controller I use an attribute to which I pass as parameter the class of the RequestClass. A subscriber then...

@schmittjoh - Please merge it and release it as 3.1.1

I followed you instructions. But I get some errors: ```vendor/github.com/vladimirvivien/go4vl/v4l2/control_values.go:145:39: could not determine kind of name for C.V4L2_CID_COLORFX_RGB vendor/github.com/vladimirvivien/go4vl/v4l2/control_values.go:115:32: could not determine kind of name for C.V4L2_COLORFX_SET_RGB vendor/github.com/vladimirvivien/go4vl/v4l2/control_values.go:76:41: could not...