docs: fix default disconnect.replace value to match actual default

[mismithhisler]

Description

The disconnect.replace value defaults to true. Fixes docs to match this.

Fixes: #27028

Testing & Reproduction steps

Links

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Changes to Security Controls

Are there any changes to security controls (access controls, encryption, logging) in this pull request? If so, explain.

[tgross]

Oops sure does. LGTM