Feature Request: Limit email recipient suggestions to current task's Custom Fields only

When composing an email from a task, ClickUp now suggests email addresses that have been used across other tasks in the workspace. Previously, suggestions were limited to emails stored in the current task's Custom Fields, which was the preferred behavior.

Current behavior: The To/CC/BCC fields suggest email addresses from across the workspace, including contacts used on unrelated tasks.

Requested behavior: Only suggest email addresses that exist in the Custom Fields of the specific task being emailed from.

Why it matters: In an accounting/bookkeeping workflow, each task represents a specific client. Suggesting emails from other clients' tasks creates a risk of emailing the wrong contact and slows down the workflow. The previous behavior of scoping suggestions to the task's own Custom Fields was more accurate and safer.