Veiwing a lesson before questions / pages are added results in an exception

When a student attempts to view a lesson activity prior to content / question pages being added, the lesson displays an exception to the student

Steps to reproduce:
1. As a teacher create a new lesson activity but do not add any pages to it
2. As a student view the newly created lesson activity

Expected result:
Student should get a message indicating that the lesson is not ready to be attempted.

Actual Result:

Debug info:
Error code: cannotfindfirstpage
Stack trace:
line 481 of /lib/setuplib.php: moodle_exception thrown
line 284 of /mod/lesson/view.php: call to print_error()