How to edit Pre-filled Web Form by logging in as a different User

The Admin creates “Users” who are students and fills in some details in the “Student Applicant” form, where the User is linked to the Student Applicant. After saving the form, a custom Web Form for “Student Applicant” is available.

However, when a Student User logs into ERPNext and visits the Web Form for the Student Applicant, the data entered by the Admin is not visible. Instead, the user is redirected to a new form (with the URL ending in /new).

How can I display the existing Student Applicant record linked to the logged-in User when they access the Web Form?