Different type treatment with substitute
If a symbol has two fields in one text box, the type is styled differently if a substitute is used. With a substitute is the prefered styling. Without, the second word of the first field uses the second field's styling.

<img width="696" alt="screenshot 2016-04-11 10 07 39" src="https://cloud.githubusercontent.com/assets/5688128/14429887/4b3ff430-ffcd-11e5-9de5-7d68b4102e48.png">
