2 conflicts referencing the same path?

While investigating an issue with rendering conflicts on a pull request, I noticed that the merge was producing this output (sanitized for paths)

$ git merge --no-ff --log -m "Test" 190a25b6e0f32c7b8ccddf8c31e054149dece8b7 CONFLICT (rename/add): Rename A->B in HEAD. B added in 190a25b6e0f32c7b8ccddf8c31e054149dece8b7 Adding as B~190a25b6e0f32c7b8ccddf8c31e054149dece8b7 instead ... Auto-merging B CONFLICT (content): Merge conflicts in B

(There are several other conflicts listed "between" the two I'm showing here, various rename/add, add/add and content conflicts, but I'm trimming those out to focus on the lines that I think are relevant to my question.)

This merge produces 2 (or is it 3?) conflicts for the same B path:
- Rename A to B in HEAD, add B in 190a25b
- Content conflicts in B

The version of B left in place _does_ contain conflict markers, after the merge processes completes. The version added as B~190a25b has no conflict markers; it just shows a small number of inserted lines.

The merge in question produces 23 different CONFLICT lines, but aside from "composite" conflicts (rename/add, add/add) that can include the same path multiple times in their output, only this one path is mentioned in multiple CONFLICT lines.

I'm still trying to produce a set of steps that will allow a minimal reproduction, but I thought I'd post to the list just to see if anyone had any thoughts on how it could happen. Is it a "normal" (albeit rare) case? Or could it represent some sort of issue in Git's 3-way merge algorithm (in its behavior or perhaps in how the merge conflicts are logged)?

Any insights appreciated! Bryan Turner