Shender/git118 refresh buddy text

Describe your PR
There was really 2 bugs here. The buddy text wasn't updated till the job had finished executing, thus sending a :finished SSE.
There was also a problem with the job.reload() not reading the updated values written by the thread which executed the job. This is a Rails bug that doesn't bypass the QueryCache for reloads.

/cc @zendesk/samson @pswadi-zendesk

### References
 - Jira link: #118 
 - Rails bug with reload(): https://github.com/rails/rails/pull/17140

### Risks
 - None
Yup, I linked the rails bug I have open in the PR description. Currently it's by design, and since the QueryCache is per DB connection, the job execution thread can't invalidate the QueryCache on the request thread.