Summary

When trying to edit a SLA goal, the calendar is set to "24/7 Calendar" automatically when user click on the goal.

Steps to Reproduce

1. Create a Basic Service Desk project
2. Navigate to Project settings > SLAs
3. Edit "Time to resolution" SLA
4. Modify the "priority = Highest" rule by changing its goal
5. Modify the "All remaining issues" rule by changing its goal
6. Now go back and try to modify "priority = Highest" rule again (see the screencast below)
   2017-03-02_17-28-33.mp4

Expected Results

The Calendar of the "priority = Highest" rule remains in "Sample 9-5 Calendar"

Actual Results

The Calendar of the "priority = Highest" rule gets changed to "24/7 Calendar"