Issue Summary

When connecting Opsgenie to Bitbucket under 'Atlassian products', it redirects from one logged-in account to another. 

Here are a few examples: https://www.loom.com/share/7f8bf3f15c3f4946b1e5072085ad7ca3

https://www.loom.com/share/d955ba8fc33849c084e8d6a0a077eb86

Steps to Reproduce

1. Be logged in on two different Opsgenie accounts, same browser. 
2. Under 'Atlassian products ', try to connect to a Bitbucket using the Atlassian products.
3. Make note of the Opsgenie you're connecting from. After trying to connect to Bitbucket, it takes you to your other Opsgenie.
4. Connectivity fails when you go to the desired Opsgenie

Expected Results

Should not redirect to the other Opsgenie instance that you're logged in to. It should know which Opsgenie you're connecting from and redirect you there.

Actual Results

Redirect happens to the other Opsgenie, connectivity fails. 

Workaround

Trying this out in an incognito window, the redirect to the other Opsgenie doesn't happen. Might be some cookies shenanigans.