Does the doubled dāl in «مُمَدَّدَةٍ» require the special ghunnah?

Al-Māʿūn and Al-Humazah: Applied Assimilation, Concealment, Madd and Hāʾ Rules

• No; the special doubled-consonant ghunnah is for nūn and mīm
• Yes; every shaddah has ghunnah
• Yes; dāl alone carries ghunnah
• This is madd munfaṣil