Downloading removed project cause unhandled expection

[jozef-budac]

Scenario:

1. create and mergin project on mergin
2. refresh QGIS plugin, so you can see it
3. remove the mergin project on mergin web app
4. in QGIS plugin, try to download the project

You get unhandled exception

Traceback (most recent call last):

  File "/home/jozef/.local/share/QGIS/QGIS3/profiles/scaling/python/plugins/Mergin/mergin/client.py", line 192, in _do_request
    return self.opener.open(request)

  File "/usr/lib/python3.10/urllib/request.py", line 525, in open
    response = meth(req, response)

  File "/usr/lib/python3.10/urllib/request.py", line 634, in http_response
    response = self.parent.error(

  File "/usr/lib/python3.10/urllib/request.py", line 563, in error
    return self._call_chain(*args)

  File "/usr/lib/python3.10/urllib/request.py", line 496, in _call_chain
    result = func(*args)

  File "/usr/lib/python3.10/urllib/request.py", line 643, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)

urllib.error.HTTPError: HTTP Error 404: NOT FOUND


During handling of the above exception, another exception occurred:


Traceback (most recent call last):

  File "/home/jozef/.local/share/QGIS/QGIS3/profiles/scaling/python/plugins/Mergin/sync_dialog.py", line 108, in download_start_internal
    self.job = download_project_async(self.mergin_client, self.project_name, self.target_dir)

  File "/home/jozef/.local/share/QGIS/QGIS3/profiles/scaling/python/plugins/Mergin/mergin/client_pull.py", line 127, in download_project_async
    latest_proj_info = mc.project_info(project_path)

  File "/home/jozef/.local/share/QGIS/QGIS3/profiles/scaling/python/plugins/Mergin/mergin/client.py", line 488, in project_info
    resp = self.get("/v1/project/{}".format(project_path), params)

  File "/home/jozef/.local/share/QGIS/QGIS3/profiles/scaling/python/plugins/Mergin/mergin/client.py", line 207, in get
    return self._do_request(request)

  File "/home/jozef/.local/share/QGIS/QGIS3/profiles/scaling/python/plugins/Mergin/mergin/client.py", line 181, in wrapper
    return f(self, *args)

  File "/home/jozef/.local/share/QGIS/QGIS3/profiles/scaling/python/plugins/Mergin/mergin/client.py", line 196, in _do_request
    raise ClientError(info.get("detail"))

Mergin.mergin.common.ClientError: The requested URL was not found on the server. If you entered the URL manually please check your spelling and try again.