Caching not working with experiments that have a "." in its name

[iwasrobbed-ks]

Description

Every time an experiment is added with a . in it's name to the debug list, it disappears in the next session.

It seems the restoreFromCache function in SwitchboardCache pulls the missing experiment, but the experiment is missing when Switchboard gets activated.

Steps to reproduce

1. Select my-great-experiment-3.1 from existing
2. Enabled experiment
3. Save configuration
4. Close app
5. Go back to the Switchboard Debug and the experiment is gone.

Expected result

The experiment should remain there with the same configuration.