Disabled Plan keeps trying to poll repository

Steps to reproduce

1. Go to the Plan Configuration >> Plan details page.
2. Uncheck the Plan enabled option.

Expected behavior

If the Plan has been disabled, all the options under 'Automatically manage branches' should be turned off automatically. As a result, Bamboo will stop trying to poll the primary source repository looking for changes.

Problem

If any of the options inside Plan Configuration >> Branches under 'Automatically manage branches' are enabled after disabling a Plan, Bamboo will keep trying to poll the repository.

Workaround

Disable all the 3 options under 'Automatically manage branches'.