Fix dictionary update in try_push_job_info()

Fix dictionary update in try_push_job_info()

the function `try_push_job_info()` is not
updating `job_info` dictionary properly since
we want to update `job_info` with `extra_info`,
however, in lines 498 and 499 we are assigning
`job_info` to a copy of `extra_info` and updating
`job_info` with `job_config` which is incorrect.
Instead, we should assign `job_info` with
a copy of `job_config` and update `job_info` with
`extra_info`