Does reconstructing the answer to a poetic condition necessarily make it ījāz al-ḥadhf?

Musāwāt and Ījāz al-Qaṣr: Proportionate Wording and the Rhetoric of Qiṣāṣ

• Yes; every grammatical reconstruction proves rhetorical omission
• Yes, provided the poem has two hemistichs
• No, because Arabic never permits omission
• No; the expressed construction may already convey the intended meaning