Cannot access the solve conflict tool (Invalid value for --output)

[andreatitolo]

Describe the bug
First of, thank you for working on a graphical interface to Kart, it is an amazing integration between kart and QGIS!

About the issue, when a repository is in a merging state, I cannot access the solve conflict interface as seen on the docs. I can solve the conflicts using the CLI, but it would be great to be able to access the graphical tool as well.

To Reproduce
Steps to reproduce the behavior:

1. Create a new branch
2. Add some geometries
3. Switch to the main branch
4. Add other geometries to the same layer
5. Merge the second branch into main
6. Expected conflicts occur, repository is in a merging state, click on Resolve conflicts..
7. The error below pops up:

Kart failed with the following message: 
Usage: kart conflicts [OPTIONS] [FILTERS]...
Try 'kart conflicts --help' for help.
Error: Invalid value for --output: Need to specify a directory via --output for GeoJSON with more than one dataset 

Expected behavior
To solve conflict with the graphical plugin

Screenshots

Version info (this is important!):

Kart Plugin version
1.0.14
QGIS version
3.36.1-Maidenhead
Operating system
macOS 13.6.5 x86_64 i386 64bit
Kart version
Kart v0.15.1, Copyright (c) Kart Contributors
» GDAL v3.8.0; PROJ v9.3.0; PDAL v2.6.0
» PyGit2 v1.12.1; Libgit2 v1.6.4; Git v2.38.1; Git LFS v3.3.0
» SQLAlchemy v1.4.45; pysqlite3 v2.6.0/v3.43.1; SpatiaLite v5.1.0; Libpq v16.0.0

Additional context
I am working with a geopackage, so the conflict is in one of the primary keys.

[oznogon]

#72 is a duplicate of this.