Steps to replicate the issue (include links if applicable):

• Open up a talk page on two tabs, using the add section link
• Add some content
• Save them at the same time (such as hitting save on one and immediately hitting save on the other by switching tabs through keyboard shortcuts)

What happens?: Edit conflict

What should have happened instead?: The two sections should be added separately

Software version (skip for WMF-hosted wikis like Wikipedia):

Other information (browser name/version, screenshots, etc.):