## Description **[Steps to reproduce]:** 1. Create an experiment/rollout and check the "First Run Experiment" option from the Audience section. 1. Navigate to the Summary page and observe the Full Targeting expression. **[Expected result]:** * The "is_first_run" = true expression is displayed in the Full Targeting expression. **[Actual result]:** * The "is_first_run" = true flag is not displayed in the Full Advanced Targeting while the "First Run Experiment" option is checked (e.g.: [https://stage.experimenter.nonprod.webservices.mozgcp.net/nimbus/apple-intelligence/summary/](https://stage.experimenter.nonprod.webservices.mozgcp.net/nimbus/apple-intelligence/summary/)) **[Notes]:** * This issue is reproducible on Stage and Production servers. * Attached a screen recording of the issue: ┆Issue is synchronized with this [Jira Bug](https://mozilla-hub.atlassian.net/browse/EXP-5939) ┆Attachments: <a href="https://mozilla-hub.atlassian.net/rest/api/2/attachment/content/94912">Screen Recording 2025-09-11 at 4.07.01 PM.mov</a>