Unable to upgrade application link

Instance A of JIRA was running on 6.2-SNAPSHOT
Instance B of JIRA was running 6.1.3

I reinstalled instance B so it is 6.2-SNAPSHOT now.

Upgrading application link did not work, seems to be some problem in UI.

Reproduction Steps

1. run standalone versions

mkdir ~/amps1; cd ~/amps1; atlas-run-standalone --product jira -v 6.2-SNAPSHOT -p 8990
mkdir ~/amps2; cd ~/amps2; atlas-run-standalone --product jira -v 6.1.3 -p 8991

2. in Google Chrome, create applink from 6.2-SNAPSHOT to 6.1.3, check "The servers have the same set of users and usernames."
3. kill 6.1.3
4. run 6.2-SNAPSHOT on port 8991

cd ~/amps2; rm -rf amps-standalone/; atlas-run-standalone --product jira -v 6.2-SNAPSHOT -p 8991

5. reload applinks view in instance running on port 8990
6. click "Click here to Upgrade the Application Link configuration"
7. click Next
8. In console you should get "Uncaught TypeError: Cannot call method 'split' of undefined"