[JENKINS-64079] Credentials are not properly merged when applying JCasC

Currently if I manually add a credential (no matter if global domain or new domain) it is cleared after I click on Reload existing configuration in /configuration-as-code/.

I found nothing on how existing configuration is supposed to be merged with the configuration provided as yaml in the documentation. But in the case of credentials it is sometimes desirable to allow credentials next to the ones being maintained in the configuration file.

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Originally reported by kwin, imported from: Credentials are not properly merged when applying JCasC

• status: Open
  
• priority: Minor
  
• component(s): credentials-plugin
  
• label(s): jcasc-compatibility
  
• resolution: Unresolved
  
• votes: 2
  
• watchers: 3
  
• imported: 2025-12-08
  

Currently if I manually add a credential (no matter if global domain or new domain) it is cleared after I click on Reload existing configuration in /configuration-as-code/.

I found nothing on how existing configuration is supposed to be merged with the configuration provided as yaml in the documentation. But in the case of credentials it is sometimes desirable to allow credentials next to the ones being maintained in the configuration file.