Period (.) and Comma (,) keyboard shortcuts do the same thing

According to JIRA's keyboard shortcut help menu,

1. The period (.) is for Quick Operations
2. The comma (,) is for quick field editing

But when viewing a JIRA issue, either one of them does the same thing. QuickAction.jpg

As per my understanding, the period shortcut should not show the list of fields. (that is the comma shortcut's job)