Issue with .* Unmount nfs share with installation media

[Rendanic]

I hit a problem during some bughunting in 1 role with the task:
.* Unmount nfs share with installation media

The playbook is aborted when the umount is not possivle.
Why is it aborted when a process has still an open file handle? Let's skip the task and leave the filesystem mounted on the machine.

What about a mount without adding the entry to fstab?
I don't care about a static mount for installation media. We can easily remount it again during the execution of the role and could ignore the problem due to open file handles.

What do you think about ignorring the state of the umount-Task for the NFS-Shares?

Kind Regards
Thorsten