Streamlit 1.12.0 doesn't allow the same key for widgets with different labels

[blackary]

Summary

Before streamlit 1.12.0, It used to be that if you had widgets with different labels but the same key, that was fine. Now, any two widgets of the same type with the same key cause a DuplicateWidgetID error.

Steps to reproduce

Code snippet:

import streamlit as st

st.checkbox("Label1", key=1)

st.checkbox("Label2", key=1)

Expected behavior:

No error raised

Actual behavior:

DuplicateWidgetID raised

Is this a regression?

Yes. It worked fine on streamlit < 1.12.0

Debug info

• Streamlit version: (get it with $ streamlit version) 1.12.0
• Python version: (get it with $ python --version) 3.10.3
• Using Conda? PipEnv? PyEnv? Pex?
• OS version:
• Browser version:

Additional information

Originally reported on forum https://discuss.streamlit.io/t/streamlit-version-1-12-bug/29099/3

[kajarenc]

Hello hello @blackary !

Actually, this is not a bug, but a feature :)

I implemented that here #5000 since previous behavior breaks our principle to not allow different widgets with the same user key