Demote behavior about gto HOT 3 CLOSED

(gto-example) ➜  gto-example git:(main) pip freeze | grep great                                                                                                                          27ms
great-tool-ops==0.0.6
(gto-example) ➜  gto-example git:(main) gto show                                                                                                                                       1.244s
                 environment
          latest     staging production
features    None         NaN        NaN
nn        v0.0.1      v0.0.1        NaN
rf        v1.0.1      v1.0.1     v1.0.0
(gto-example) ➜  gto-example git:(main) gto which rf production                                                                                                                         707ms
v1.0.0
(gto-example) ➜  gto-example git:(main) gto demote rf production                                                                                                                        511ms
Demoted rf from label production
(gto-example) ➜  gto-example git:(main) gto which rf production                                                                                                                         519ms
v1.0.1
(gto-example) ➜  gto-example git:(main) gto show                                                                                                                                        505ms
                 environment
          latest     staging production
features    None         NaN        NaN
nn        v0.0.1      v0.0.1        NaN
rf        v1.0.1      v1.0.1     v1.0.1

great-tool-ops @ file:///Users/dave/Code/gto

$ git clone [email protected]:iterative/gto-example.git
Cloning into 'gto-example'...
remote: Enumerating objects: 196, done.
remote: Counting objects: 100% (196/196), done.
remote: Compressing objects: 100% (103/103), done.
remote: Total 196 (delta 87), reused 155 (delta 49), pack-reused 0
Receiving objects: 100% (196/196), 27.69 KiB | 914.00 KiB/s, done.
Resolving deltas: 100% (87/87), done.
$ cd gto-example
$ python3 -m venv venv
$ source venv/bin/activate
$ python3 -m pip install great-tool-ops
Collecting great-tool-ops
  Using cached great_tool_ops-0.0.6-py3-none-any.whl (21 kB)
Collecting click
  Using cached click-8.0.4-py3-none-any.whl (97 kB)
Processing /Users/dave/Library/Caches/pip/wheels/1b/48/26/7dcbae6a5a0912a3486f7991673eba6fcd8bb87245a067b97f/numpy-1.22.3-cp39-cp39-macosx_12_0_arm64.whl
Collecting ruamel.yaml
  Using cached ruamel.yaml-0.17.21-py3-none-any.whl (109 kB)
Collecting pandas
  Using cached pandas-1.4.1.tar.gz (4.9 MB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
    Preparing wheel metadata ... done
Collecting semver==3.0.0-dev.3
  Using cached semver-3.0.0.dev3-py3-none-any.whl (16 kB)
Collecting pydantic
  Using cached pydantic-1.9.0-py3-none-any.whl (140 kB)
Collecting gitpython
  Using cached GitPython-3.1.27-py3-none-any.whl (181 kB)
Collecting ruamel.yaml.clib>=0.2.6; platform_python_implementation == "CPython" and python_version < "3.11"
  Using cached ruamel.yaml.clib-0.2.6.tar.gz (180 kB)
Collecting pytz>=2020.1
  Using cached pytz-2021.3-py2.py3-none-any.whl (503 kB)
Collecting python-dateutil>=2.8.1
  Using cached python_dateutil-2.8.2-py2.py3-none-any.whl (247 kB)
Collecting typing-extensions>=3.7.4.3
  Using cached typing_extensions-4.1.1-py3-none-any.whl (26 kB)
Collecting gitdb<5,>=4.0.1
  Using cached gitdb-4.0.9-py3-none-any.whl (63 kB)
Collecting six>=1.5
  Using cached six-1.16.0-py2.py3-none-any.whl (11 kB)
Collecting smmap<6,>=3.0.1
  Using cached smmap-5.0.0-py3-none-any.whl (24 kB)
Using legacy 'setup.py install' for ruamel.yaml.clib, since package 'wheel' is not installed.
Building wheels for collected packages: pandas
  Building wheel for pandas (PEP 517) ... done
  Created wheel for pandas: filename=pandas-1.4.1-cp39-cp39-macosx_11_0_arm64.whl size=10171347 sha256=64ea3a9bf9452f40e5c337be6c536e9cc80617b1e0280448a4405129d9489e7e
  Stored in directory: /Users/dave/Library/Caches/pip/wheels/be/58/f7/a567c0fd13ba6bd3889d081995bb3857fe3c957bb8b11eadbb
Successfully built pandas
Installing collected packages: click, numpy, ruamel.yaml.clib, ruamel.yaml, pytz, six, python-dateutil, pandas, semver, typing-extensions, pydantic, smmap, gitdb, gitpython, great-tool-ops
    Running setup.py install for ruamel.yaml.clib ... done
Successfully installed click-8.0.4 gitdb-4.0.9 gitpython-3.1.27 great-tool-ops-0.0.6 numpy-1.22.3 pandas-1.4.1 pydantic-1.9.0 python-dateutil-2.8.2 pytz-2021.3 ruamel.yaml-0.17.21 ruamel.yaml.clib-0.2.6 semver-3.0.0.dev3 six-1.16.0 smmap-5.0.0 typing-extensions-4.1.1
WARNING: You are using pip version 20.2.3; however, version 22.0.4 is available.
You should consider upgrading via the '/private/tmp/gto-example/venv/bin/python3 -m pip install --upgrade pip' command.
$ gto unregister rf v1.0.0
Unregistered rf version v1.0.0
$ gto show
Traceback (most recent call last):
  File "/private/tmp/gto-example/venv/bin/gto", line 8, in <module>
    sys.exit(cli())
  File "/private/tmp/gto-example/venv/lib/python3.9/site-packages/click/core.py", line 1128, in __call__
    return self.main(*args, **kwargs)
  File "/private/tmp/gto-example/venv/lib/python3.9/site-packages/click/core.py", line 1053, in main
    rv = self.invoke(ctx)
  File "/private/tmp/gto-example/venv/lib/python3.9/site-packages/click/core.py", line 1659, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/private/tmp/gto-example/venv/lib/python3.9/site-packages/click/core.py", line 1395, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/private/tmp/gto-example/venv/lib/python3.9/site-packages/click/core.py", line 754, in invoke
    return __callback(*args, **kwargs)
  File "/private/tmp/gto-example/venv/lib/python3.9/site-packages/gto/cli.py", line 195, in show
    click.echo(gto.api.show(repo, dataframe=True))
  File "/private/tmp/gto-example/venv/lib/python3.9/site-packages/gto/api.py", line 108, in show
    for o in reg.state.objects.values()
  File "/private/tmp/gto-example/venv/lib/python3.9/site-packages/gto/registry.py", line 60, in state
    state = self.env_manager.update_state(state, index)
  File "/private/tmp/gto-example/venv/lib/python3.9/site-packages/gto/tag.py", line 185, in update_state
    state.objects[tag.name] = index_tag(state.objects[tag.name], tag.tag)
  File "/private/tmp/gto-example/venv/lib/python3.9/site-packages/gto/tag.py", line 165, in index_tag
    obj.labels.append(label_from_tag(tag, obj))
  File "/private/tmp/gto-example/venv/lib/python3.9/site-packages/gto/tag.py", line 148, in label_from_tag
    version=obj.find_version(
  File "/private/tmp/gto-example/venv/lib/python3.9/site-packages/gto/base.py", line 103, in find_version
    raise GTOException(
gto.exceptions.GTOException: 0 versions of object rf found, skipping unregistered
$ pip freeze
click==8.0.4
gitdb==4.0.9
GitPython==3.1.27
great-tool-ops==0.0.6
numpy==1.22.3
pandas==1.4.1
pydantic==1.9.0
python-dateutil==2.8.2
pytz==2021.3
ruamel.yaml==0.17.21
ruamel.yaml.clib==0.2.6
semver==3.0.0.dev3
six==1.16.0
smmap==5.0.0
typing-extensions==4.1.1