"Create Issue in Epic" dialog should prevent creation of other issues of Epic type

When creating an Epic in Jira and subsequently navigating to it, users may want to create stories under that Epic by clicking the '+' button right next to the header of the "Issues in Epic" panel.

However, since the last issue created was of Epic type, the dialog will have that issue type pre-selected and will therefore create a new Epic, which cannot be linked to the Epic that was just created.

The dialog triggered from there should either choose a different issue type to start with or not list the Epic issue type as an option.