Changing value of a struct variable collapses the details panel

While working with a struct. If the user changes the value of a variable the info panel auto-collapses. The user than has to re-expand the info-panel and work their way back to the place they left off at.

STEPS

1. Create a new user defined struct
2. Open it, change the default variable's type to Linear Color
3. Add another variable
4. In the Default Values panel, expand both trees
5. Set R = 1 and press Enter for the first variable

RESULTS
The details panel collapses on enter