Glass sagging methods and apparatus

A method for reforming a glass-based sheet, the method comprising:

• placing a glass-based sheet over a mold, the mold comprising:
• a mold cavity, and a top surface defining a top perimeter edge of the mold cavity;
• placing a glass-based patch on a top surface of the glass-based sheet;
• and
• heating the glass-based sheet and the glass-based patch to a reforming temperature such that the glass-based sheet and the glass-based patch deform into the mold cavity under gravitational force, wherein after deforming under the gravitational force, the glass-based patch comprises:
• a first portion disposed over the top surface of the mold and conforming to the shape of the top surface, and
• a second portion bent over the top perimeter edge of the mold cavity and disposed on the top surface of the glass-based sheet within the mold cavity.