This is not the case, because section 5.1 is a completely separate section from section 5. There will be some interrelations, but it's a completely different article. The committee will vote on the two amendments to the new article 5.1, because there are two of them.
Basically, it's as if they were articles 6 and 7, but, as article 6 already exists, the new article comes in between articles 5 and 6.