Imagemagick convert works on OpenEXR files with non-RGBA channel names

Question

OpenEXR files generated by Pixar's RenderMan uses different, non-traditional, channel names, Ci.r, Ci.g, Ci.b, a instead of R, G, B, A. And Imagemagick's convert seems not to handle this?

Given a EXR file with the following channels:

file format version: 2, flags 0x200
channels (type chlist):
    Ci.b, 16-bit floating-point, sampling 1 1
    Ci.g, 16-bit floating-point, sampling 1 1
    Ci.r, 16-bit floating-point, sampling 1 1
    a, 16-bit floating-point, sampling 1 1

I like to convert it to a JPEG by Imagemagick's convert:

convert bear02.bty.0101.exr output.jpeg

What I get is an empty JPEG. Does anyone know how to make Imagemagick aware of different channel names?