Properly set the value of the select component in DebugBreakpointWidget

[pisv]

What it does

Fixes #12547 by ensuring that the value of the select component of the DebugBreakpointWidget is set to this.context in the render method.

How to test

Use the steps described in #12547 to verify that the issue is fixed. Check that there are no regressions.

Review checklist

• As an author, I have thoroughly tested my changes and carefully followed the review guidelines

Reminder for reviewers

• As a reviewer, I agree to behave in accordance with the review guidelines

[pisv]

Although this fix seems to work fine and is based on the approach that is in line with other similar places like DebugConfigurationSelect and PreferenceSelectInputRenderer, I'd like to note that the issue might also be fixed in a more general way by ensuring that the SelectComponent itself resets its selection in case the defaultValue property changes. This could be done by overriding its componentDidUpdate method:

    override componentDidUpdate(prevProps: Readonly<SelectComponentProps>): void {
        if (this.props.defaultValue !== prevProps.defaultValue && this.value !== this.props.defaultValue) {
            this.value = this.props.defaultValue;
        }
    }

However, the alternative fix seems less safe to me.

[vince-fugnitto]

LGTM 👍 I can confirm the bug on master, and the changes work as expected.

[pisv]

@vince-fugnitto Thank you for your review and approval.