Attempting to create a new tracker using an existing namespace should do nothing (closes #411)
Attempting to create a new tracker using an existing namespace should do nothing (closes #411)

snowplow/snowplow-javascript-tracker,snowplow/snowplow-javascript-tracker,snowplow/snowplow-javascript-tracker,YieldifyLabs/snowplow-javascript-tracker,snowplow/snowplow-javascript-tracker,YieldifyLabs/snowplow-javascript-tracker,YieldifyLabs/snowplow-javascript-tracker