When you create a new person related to another (e.g., Profile-1234), such as adding their father, mother, or spouse, you get a URL like the following:
In the form, the tab order is incorrect, when you tab forward out of "Death Location:" field, it takes you to "Notes:" then tab again, it reverses back to "E-Mail Address:" then tab again skips ahead to "Sources:".
Solution is to swap the order of the "Notes:" and "E-Mail Address:" fields so that E-Mail comes before Notes instead of after.