Callbacks are fired even though prevent_initial_call is set to True

[JohannesWiesner]

Currently, all callbacks are fired, even though I set prevent_initial_call=True. This does not affect any functionality off the app but should be fixed.

[JohannesWiesner]

Check this link, it might have something to do with this?:

However, the above behavior only applies if both the callback output and input are present in the app layout upon initial load of the application.

It is important to note that prevent_initial_call will not prevent a callback from firing in the case where the callback's input is inserted nto the layout as the result of another callback after the app initially loads unless the output is inserted alongside that input!

In other words, if the output of the callback is already present in the app layout before its input is inserted into the layout, prevent_initial_call will not prevent its execution when the input is first inserted into the layout.