Not avoiding the execution if the previous cron is already running

[honsa]

Hello

Thank you for your nice extension.

I installed an tried it but cannot see how it avoids the execution of a already running cron.

If a cron is running and I start the same cron the function get_cron returns the running cron and start the script a second time under the id of the first cron.

Could you verify this behaviour or am I doing something wrong?