[IGN-6344] Audit log full from system.tag.writeBlocking calls

[tyler.bennett]

I was able to verify that v8.1.41 did not have the issue and v8.1.42 does.

@tyler.bennett

we have noted a bug in v8.1.42 which is adding gateway scoped tag write events to the audit log despite the Gateway audit profile being set to -None-.

Note that if using a lot of scripted tag writes this can cause the audit log to grow to several million records and can cause the gateway to crash if someone were to query the audit log without defining appropriate limits.

@tyler.bennett

we found that using the view log feature from the Config > Security > Auditing gateway menu also causes the same issue (memory and CPU spike to 100% and the gateway restarts itself).