I initially reported this in the Core, but it looks like there is a bug in the USWDS theme instead.
After upgrading USWDS from 3.2.1 to 3.2.2 I got all theme hooks registered twice.

Spend some time debugging and found this recent change (ironically I made it) - https://www.drupal.org/project/uswds/issues/3538447
So it introduced a regression, surprisingly it went unnoticed.

Issue fork uswds-3571141

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euk created an issue. See original summary.

euk’s picture

euk commented
Project: Drupal core » U.S. Web Design System (USWDS)
Version: 11.3.x-dev » 3.2.2
Component: theme system » Code
Issue summary: View changes

euk opened merge request !27

euk’s picture

euk commented
Priority: Normal » Critical
Status: Active » Needs review

  • euk committed 352bffad on 3.x 
    #3571141: Fixes a regression in hook discovery
jrglasgow’s picture

jrglasgow commented
Status: Needs review » Fixed

Now that this issue is closed, review the contribution record.

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Status: Fixed » Closed (fixed)

Automatically closed - issue fixed for 2 weeks with no activity.