Unhandled exepction, when downloading project wihout a workspace

[jozef-budac]

This issue is related to this one: https://github.com/MerginMaps/server-private/issues/2381

The plugin have a problem with downloading a public project for a workspace, which is inactive. The plugin should show reasonable error like "The workplace doesn't exist, but ends with an unhandled exception

Traceback (most recent call last):

  File "/home/jozef/.local/share/QGIS/QGIS3/profiles/c/python/plugins/Mergin/mergin/client.py", line 206, 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/c/python/plugins/Mergin/sync_dialog.py", line 113, 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/c/python/plugins/Mergin/mergin/client_pull.py", line 143, in download_project_async
    latest_proj_info = mc.project_info(project_path)

  File "/home/jozef/.local/share/QGIS/QGIS3/profiles/c/python/plugins/Mergin/mergin/client.py", line 692, in project_info
    resp = self.get("/v1/project/{}".format(project_path_or_id), params)

  File "/home/jozef/.local/share/QGIS/QGIS3/profiles/c/python/plugins/Mergin/mergin/client.py", line 230, in get
    return self._do_request(request)

  File "/home/jozef/.local/share/QGIS/QGIS3/profiles/c/python/plugins/Mergin/mergin/client.py", line 195, in wrapper
    return f(self, *args)

  File "/home/jozef/.local/share/QGIS/QGIS3/profiles/c/python/plugins/Mergin/mergin/client.py", line 220, in _do_request
    raise ClientError(error_msg)

Mergin.mergin.common.ClientError: HTTP Error: 404 NOT FOUND
URL: https://app.dev.merginmaps.com/v1/project/dsadsadas/TestingPublicProject
Method: GET
Detail: Workspace doesn't exist