Add test in import code to make sure two overlapping courses aren't imported - #3145

Add test in import code to make sure two overlapping courses aren't imported#3145

singingwolfboy merged 2 commits into

openedx:masteropenedx/openedx-platform:masterfrom

carsongee:cg/course_import_validationcarsongee/edx-platform:cg/course_import_validationCopy head branch name to clipboard