[PATCH/RFC 0/3] Split fetch and merge logic

["Santi Béjar" <sbejar@gmail.com>]

This series implements the split of the fetch and merge logic.

The first patch adds tests for the merge logic. It is very extensive and
expensive (in time), so I just post this to show that (almost) nothing
changes (although some part of if could be included). And the third
patch shows what changes.

Santi Béjar (3):
      t/t5515-fetch-merge-logic.sh: Added tests for the merge login in git-fetch
      git-fetch: Split fetch and merge logic
      t/t5515: fixes for the separate fetch and merge logic