Investigate lot of allocations and time required in JobRepository benchmarks

[sbchaos]

We have the following data from the JobRepository benchmarks:

BenchmarkJobRepository/Save-16           	       1	1375010724 ns/op	 3291376 B/op	   11338 allocs/op
BenchmarkJobRepository/GetByName-16      	       1	20054992147 ns/op	98418488 B/op	 1075058 allocs/op
BenchmarkJobRepository/GetAll-16         	       1	20741357727 ns/op	135020856 B/op	 1552099 allocs/op
BenchmarkProjectJobRepo/GetByName-16     	       1	19931592173 ns/op	98327032 B/op	 1074752 allocs/op
BenchmarkProjectJobRepo/GetAll-16        	       7	 160527678 ns/op	37056641 B/op	  478188 allocs/op

We should investigate the test and code to identify the source of too many allocations and add a fix for the same.