anchor.diff:       +-------+ +-------+ +-------+         |    |{d}         |
        |{s}    | |{s}    | |{s}    |         +--->|Production  |
        |local  | |local  | |local  |              |test results|
  -     |clone  | |clone  | |clone  |              |(artefact)  |
  +     |clone  | |clone  | |clone  |              |(artifact)  |
        +-------+ +-------+ +-------+              +------------+
   
   ------------------------------------------------------------------------
  
positive.code:                                                 |{d}         |
                                             +--->|Preview     |
                                             |    |test results|
                                             |    |(artefact)  |
                                             |    +------------+
                                             |
                                             |
  
negative.code: |{d}   |clone |Jenkins| calls |Emender|----+    |{d}         |
  |Git   |----->|       |------>|       |-------->|Stage       |
  |repo  |      |       |       |       |----+    |test results|
  +------+      +-------+       +-------+    |    |(artifact)  |
                  | | |                      |    +------------+
                  | | |                      |
           +------+ | +-------+              |
  