Test deb arch, dist, component modification

[h3krn]

When changing distributions, components, or architectures in an existing deb_remote resulting fields will contain strings with an additional space between each two characters. This extended test will fail because of it.

fixes #195

[mdellweg]

Thank you for providing an actual reproducer.

I believe this could be a fix:
pulp/pulp-cli#1466

[h3krn]

Thank you for providing proposed fix. I've applied pulp_glue/common/context.py manually to my local non-prod instance and it indeed now allows changing component/distribution/architecture attributes

[mdellweg]

I fixed and release pulp-glue and i added your tests with the necessary recorded fixtures here.
So by installing pulp-glue 0.39.5 or 0.40.5 this should be solved.

[mdellweg]

And thank you again for actually providing a working reproducer.