Why is هَذِهِ used in مَسَاجِدُ الْمَدِينَةِ هَذِهِ?

Demonstratives inside an Idafah

• because every plural takes هَذِهِ
• because الْمَدِينَةِ is the demonstrative target
• because هَذِهِ is always placed last
• because مَسَاجِدُ is non-human broken plural treated as feminine singular