Doing ghusl for Jumu’ahis prescribed as Sunnah when getting ready to go to the prayer

Key word - {*Friday Prayers:-}
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Does the obligatory ghusl done before Fajr exempt one from also having
to do ghusl for Jumu'ah, or not?
Majmoo' Fataawa wa Maqaalaat Mutanawwi'ah li Samaahat al-Shaykh
al-'Allaamah 'Abd al-'Azeez ibn 'Abd-Allaahibn Baaz (may Allaah have
mercy on him), part 12, p. 404