Merge branch 'en/ort-recursive-d-f-conflict-fix'

The ort merge machinery hit an assertion failure in a history with
criss-cross merges renamed a directory and a non-directory, which
has been corrected.

* en/ort-recursive-d-f-conflict-fix:
  merge-ort: fix corner case recursive submodule/directory conflict handling

diff --cc merge-ort.c
Simple merge