When trying to create a report based on cmdb_ci table and then dot-walk on any reference field, clicking again on the Configuration Items fields causes the page to freeze.
Steps to Reproduce
Set the glide.ui.list.allow_extended_fields system property to true.
Create a new report based on table cmdb_ci - Configuration Item.
In the Available and Selected Columns section for the report, click on any of the available reference fields (the ones with the + symbol), for example, "Company[+]" field.
When you click on one of those fields, a new "mapping" icon appears above the < and > icons. Click that new icon so you can dot-walk into the reference fields.
In this example, the fields within Company are shown.
On the Available section, click on Configuration Items fields so the Available columns section just collapses any expanded reference fields (Company[+]) in this example).
The browser freezes but might eventually return after a long wait.
This issue is under review. To receive notifications when more information is available, subscribe to this Known Error article by clicking the Subscribe button at the top right of the article. If you are able to upgrade, review the Fixed In or Intended Fix Version fields to determine whether any versions have a planned or permanent fix.
Related Problem: PRB1277603